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Trigonometry

07/20/21

Use a half-angle formula to find sin(11π/12).

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Trigonometry Algebra 2

07/20/21

how is that if 1/cos(x) +1/sin(x)=√2 it must be that cos^3(x)+sin^3(x)= -(1/√2)

This is a problem from a book published in 1930, by authors Durell&RobsonAdvanced Trigonometry, it is a problem from the last chapteragain, show if1/cos(x) +1/sin(x)=√2then cos3(x)+sin3(x)=... more

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Trigonometry Algebra 2 Calculus Economics

07/20/21

High school assignment about investment (basic percentages, but also about econ and finance).

Liam and Ben are two friends who started studying the world of Finance and have different expectations for inflation in the coming years. Liam estimates inflation of 5% per year and Ben estimates... more

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Trigonometry Precalculus

07/20/21

Solve triangle ABC. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that ∠A1 is smaller than ∠A2.) b = 122, c = 163, ∠B = 43°

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Trigonometry

07/20/21

what are the lengths of the three sides

2x+3ft 43x-1ft and 4x+3ftperimeter is 185ft

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Trigonometry Algebra 2 Calculus Precalculus

07/20/21

Algebra question about investment (related to economics and percentage)

I have this school activity, I did do it, but my answers did not match! I would really really appreciate it if you could help me by explaining and giving me the answer. God bless you!John, a... more

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Answers •1

Trigonometry Calculus Precalculus Statistics

07/20/21

Value at Risk - statistics/economics

Sophie is a moderate investor who maintains her portfolio of U$50,000.00 with an average daily return of 0.1% and a daily standard deviation of 1.2%.Under these conditions, the maximum daily loss... more

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Trigonometry Algebra 2 Economics Percentage

07/20/21

Monthly inflation rate (basic percentage)

The Central Bank's Bulletin, on 07/12/2021, projected inflation for 2021 at 6.11%. If inflation in the months of January to June 2021 were:January: 0.25% February: 0.86% March: 0.93% April: 0.31%... more

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Trigonometry Math

07/20/21

express sin(x+y+z) in terms of cosine and sines of x, y, z

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Trigonometry Math

07/19/21

prove that cos2x+1/sin2x = sin2x/1-cos2x, show proper steps

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Answers •1

Trigonometry Math

07/19/21

what are the similarities and differences between y=sin(x) and y=csc(x)

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Trigonometry Math

07/19/21

a small windmill has it's centre 6m above the ground and blades 2m in length. a point P at the tip of one blade makes a complete rotation in 12 seconds.

a) determine a function that gives the height of point P above the ground at time t.b) what is the height at point P at 5 seconds?c) at what time during the first cycle is point P exactly 7m... more

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Trigonometry Math

07/19/21

solve the following equation on the interval 0<=x<=2pi, csc^2(x) - csc(x)-2=0

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Trigonometry

07/19/21

Find the equation of a sine wave that is obtained by shifting the graph y=sin(x) to the right 3 units and downward 3 units and is vertically stretched by a factor of 6 when compared to y=sin(x)

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Answers •1

Trigonometry

07/19/21

I’m unsure how to find this answer. It’s to determine what tan (pi+x) would be after being given the tan x value.

If tan x=3.5, then tan (pi + x) =

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Answers •4

Trigonometry

07/19/21

A.) Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.) x6 + 729 = 0

A.) Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)x6 + 729 = 0B.) Find the solutions of... more

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Trigonometry

07/17/21

HELP ASAP PLEASE!!!

Alex is 1.80 meters tall. He casts a shadow that is 1.45 meters long. At a distance of 4.95 meters from the tree his shadow reaches the end of a tree's shadow. What is the tree's height?Image... more

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Trigonometry Math Precalculus

07/17/21

A CD has diameter 140 mm. The angular speed is about 150 RPM. Find the LS in cm/second. What is the AS in cm/second?

These questions are very confusing to me and I can not seem to get the understanding of them for participation homework but I need to understand them for my quizzes. LS is linear speed, AS is... more

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Trigonometry Sat Math

07/17/21

Please help me on this question asap

Alex is 1.80 meters tall. He casts a shadow that is 1.45 meters long. At a distance of 4.95 meters from the tree his shadow reaches the end of a tree's shadow. What is the tree's height?Image... more

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Answers •1

Trigonometry Math Calculus Precalculus

07/17/21

How would I use the De.M Theorem to find the power given below?

[ 3 ( cos 3π/8 + i sin 3π/8 ) ] 4how also, would I write this in rectangular form? Using the DeMoivre’s Theorem Thank you.

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Trigonometry Sat Math Trig

07/17/21

Please help me on this math problem

Alex is 1.80 meters tall. He casts a shadow that is 1.45 meters long. At a distance of 4.95 meters from the tree his shadow reaches the end of a tree's shadow. What is the tree's height?Image... more

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Answers •1

Trigonometry

07/17/21

find cos( 2x) =?

If sec(x)=43 (in Quadrant-I),

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Trigonometry

07/17/21

find cos ( 2 x ) =

If tan(x)=78 (in Quadrant-I),

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Answers •1

Trigonometry

07/17/21

find tan ( 2 x ) =

If cos(x)=16 (in Quadrant-I),

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Answers •1

Trigonometry

07/17/21

Find sin ( u /2 ) if sin u = 0.231

and u is in Quadrant-II.sin(u/2)=

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Answers •1

Use a half-angle formula to find sin(11π/12).

how is that if 1/cos(x) +1/sin(x)=√2 it must be that cos^3(x)+sin^3(x)= -(1/√2)

High school assignment about investment (basic percentages, but also about econ and finance).

Solve triangle ABC. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that ∠A1 is smaller than ∠A2.) b = 122, c = 163, ∠B = 43°

what are the lengths of the three sides

Algebra question about investment (related to economics and percentage)

Value at Risk - statistics/economics

Monthly inflation rate (basic percentage)

express sin(x+y+z) in terms of cosine and sines of x, y, z

prove that cos2x+1/sin2x = sin2x/1-cos2x, show proper steps

what are the similarities and differences between y=sin(x) and y=csc(x)

a small windmill has it's centre 6m above the ground and blades 2m in length. a point P at the tip of one blade makes a complete rotation in 12 seconds.

solve the following equation on the interval 0<=x<=2pi, csc^2(x) - csc(x)-2=0

Find the equation of a sine wave that is obtained by shifting the graph y=sin(x) to the right 3 units and downward 3 units and is vertically stretched by a factor of 6 when compared to y=sin(x)

I’m unsure how to find this answer. It’s to determine what tan (pi+x) would be after being given the tan x value.

A.) Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.) x6 + 729 = 0

HELP ASAP PLEASE!!!

A CD has diameter 140 mm. The angular speed is about 150 RPM. Find the LS in cm/second. What is the AS in cm/second?

Please help me on this question asap

How would I use the De.M Theorem to find the power given below?

Please help me on this math problem

find cos( 2x) =?

find cos ( 2 x ) =

find tan ( 2 x ) =

Find sin ( u /2 ) if sin u = 0.231

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