278 Answered Questions for the topic Trigonometric Functions

05/16/20

#### How do you solve for t in 50 = 90sin(2pi*t / 26 + 3pi / 2) +115

50 = 90sin(2pi*t / 26 + 3pi / 2) +115I am not allowed to solve this by drawing a graph. Hence, I have to show working.I understand that I have to carry over the 115 and divide both sides by 90...
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05/08/20

#### Write an equation for a ferris wheel problem

Hi, I've been struggling with this question for weeks despite having adequate knowledge of the topic. If anyone could solve this for me and provide an explanation it would be greatly appreciated.A...
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Trigonometric Functions Trigonometry

02/11/20

#### Modeling Periodic Phenomena with Trigonometric Functions

Throughout any given month, the maximum and minimum ocean tides follow a periodic pattern. Last year, at a certain location on the California coast, researchers recorded the height of low tide,...
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12/14/19

#### Solve cos x = -2/3 for 0 ≤ x < 2π (round to the nearest hundredth of a radian)

I received the values 131.81 and 228.209 which is incorrect. I've tried to come up with the correct answer multiple times. Solve cos x = -2/3 for 0 ≤ x < 2π (round to the nearest hundredth of a...
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Trigonometric Functions Trigonometry

12/13/19

#### Solve 5 sin A - cos A = 0, for 0 ≤ A < 2π (round to the nearest hundredth of a radian).

I have tried my hardest to answer this question correctly, but it is always in correct. Thanks for the help! (Solve 5 sin A - cos A = 0, for 0 ≤ A ≤ 2π (round to the nearest hundredth of a radian).

Trigonometric Functions Trigonometry

11/10/19

#### The Top of the Billboard

The top of a billboard that is mounted on a base is 60 feet above the ground. At a point 25 feet from the foot of the base, the measure of the angle of elevation to the top of the base is one-half...
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Trigonometric Functions Trigonometry

06/25/19

#### Application of trigonometric functions to do with a graph about high and low tides

If the trigonometric equation is y=0.9cos(pi over 12.5 multiplied by x) and the depth of the water at low tide is 0.4m what is the depth after low tide? (2.d.p)

Trigonometric Functions Trigonometry

10/08/18

#### Find the values of the trigonometric functions of θ from the information given. sec θ = 6, sin θ < 0

I am not very sure how to go about this or start to answer it.

Trigonometric Functions Trigonometry

10/07/18

#### find all values of theta (in radian) such that tan (2/3 theta) = - sqrt3, in the interval [0, 2pi)

find all values of theta (in radian) such that tan (2/3 theta) = - sqrt3, in the interval [0, 2pi)

09/30/18

#### Prove that cos(x)tan(x) divided by cosec(x)^2 equals cos(x)^3 divided by cot(x)^3

Prove that cos(x)tan(x) / cosec(x^2) = cos(x)^3 / cot(x)^3

09/07/18

#### how high does the ladder reach on the building in feet?

A ladder of height 11 feet leans against a building so that the angle between the ground and the ladder is t∘, where 0<t<90. In terms of t, how high does the ladder reach on the building in...
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Trigonometric Functions

09/05/18

#### Solve: sin2x-sin4x+sin6x=0

This question is from trigonometry chapter in mathematics of class 11th.
"Cbse board"

07/28/18

#### Limit of a cotangent function as x approaches infinity?

Is the limit well defined?Why or why not?
the limit as x → ∞ of Cot ((x^2+1)/(x+3))

Trigonometric Functions Trigonometric Identities

07/16/18

#### fiind all solutions at interval [0,2pi] sin^2x - cos^2x = 0

find all the solutions at the interval [0,2pi] for the equation sin^2 x - cos^2 x = 0

Trigonometric Functions

07/08/18

#### word problem

Ms. Burbage wants to put 12 strips of different colored ribbon around the edge of a clock to help her first graders separate the hours. If the radius of the clock is 10 inches, then how long is...
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Trigonometric Functions

06/07/18

#### cos^2x(tanx+1)^2 -1

I need to simplify this but I just can't find my way out of it.

06/07/18

#### Points of discountuity

how do we find pointa of discountity of trignometric functions such as
tan^-1(5x)
or sec(5x)

Trigonometric Functions

04/27/18

#### H=10+3cos6t-sin9t-3sin3t show h can be rewritten as h= 13+4sin^3 t-6sin^2 3t-6sin3t

Please show the trigonometic identities and working

Trigonometric Functions Trigonometry

04/13/18

#### Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

04/13/18

#### Solve 3cos 2x = 1 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve 3cos 2x = 1 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

04/13/18

#### State the amplitude and period of this function: y = -3cos(pi/3)x.

State the amplitude and period of this function: y = -3cos(pi/3)x.

Trigonometric Functions Precalculus

04/11/18

#### (cotB)(sin^2 B)(cotB)

Write in terms of sine and cosine and simplify the expression

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