Newest Trig Questions | Wyzant Ask An Expert

04/28/15

Simplifying expressions

Sec^2(x)-tan^2(-x)

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Trig

04/26/15

A wall is 15 ft high and 10ft from a house. Find the length of the shortest ladder which will just touch the top of the wall and reach a 20.5 ft window above the ground. I used the Law of Cosine... more

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Trig Trigonometric Identities Trigonometric Functions

04/23/15

The Value (5p)/4 is a solution for the equation 3v2csc?+5=-1 true or false?

The Value (5π)/4 is a solution for the equation 3√2cscθ+5=-1 true or false Please explain this to me? there is no solution to the equation secx=0 true or false?

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Trig

04/23/15

Problem solving

Finding the area of an isosceles triangle with the two angles being 38.5 degrees and the top angle being 103 degrees, with a side length of 35 feet or minutes(I'm unsure which one they are asking... more

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Trig

04/13/15

How to factor a trig equation?

solve for x by factoring out where 0 < (or equal to) x < (or equal to) Pi/2 sin^2x-sinxcosx=0. I really need some help. I think I did it right, but I'm unsure

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Trig Trigonometry Trigonometric Functions

03/10/15

The range of y=arcsinx

the range of y=arcsinx=(-∏/2, ∏/2) TRUE OR FALSE? MY ANSWER: FALSE?????????

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Trig

02/23/15

a boat uses 50 feet of rope to drop anchor in a lake. The angle that the rope makes with the bottom of the lake is 20°. What is the depth of the water?

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Trig Math Trigonometry Math Help

02/13/15

Find the measure of the central angle with a radius of 18 inches and the area of a sector measuring 162pi square inches.

I have no clue how to do this! If someone could show me how to solve this that would be great!

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Trig

02/04/15

Which description matches the transformations y=cosx undergoes to produce y=-3cos(x)+1

Which description matches the transformations y=cosx undergoes to produce y=-3cos(x)+1 a) Vertical stretch by factor 3, reflection through the x-axis, then a vertical shift up 1... more

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Trig Trigonometry

02/04/15

Which function's graph has asymptotes located at the values

Which function's graph has asymptotes located at the values x=+/- n(pi) 1.) y=cscx 2) y=cosx 3)y=tanx 4)y=cotx a) 1 only B) 2 only c) 1 and 3 only d) 1 and 4 only

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Trig Sine

02/04/15

Which function has a domain of all real numbers?

Which function has a domain of all real numbers? A). y=sinx B) y=secx C) y=cotx D)=tanx I think it is A, sine. Correct?

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Trig Trigonometry

02/03/15

If sin(theta)=4/5 and theta is in quadrant 2,the value of cot(theta) is...? (Write as fraction if needed).

2.) If sin(theta)=4/5 and theta is in quadrant 2,the value of cot(theta) is...?(Write as fraction if needed).I don't understand this, but I tried.If sin of theata=4/5, then I know the hypotenuse is... more

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Trig Trigonometry Circles Triangles

02/03/15

Trig question

Assume cos t = .45 and cos w = .89, both t and w are positive values between 0 and 2pi , and both t and w determine a terminal point in quadrant 4. Which of the following statements best describes... more

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Trig Trigonometry Ratios Triangles

02/01/15

Is my answers correct?? trig?help? ratios?

1.) The legs of a right triangle measure 5 inches and 7 units. If theta is the angle between the 5-inch leg and the hypotenuse, cos theta= I got .58. SOH CAH... more

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Trig Trigonometry Triangles

02/01/15

Triangles Trig

If sin(theta)= -2/3, which of the following are possible? Check all that apply. A) cos(theta)= (√5)/3 and tan(theta)=2/√5 B) cos(theta)= -(√5)/3 and tan(theta)=2/√5 C) sec(theta)= 3/√5 and... more

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Trig Algebra 2 Trigonometry Inequalities

01/04/15

Given the function f(x)=4x/sqrt of (x-4), find the domain.

So I have f(x)= 4x__ √x-4 I sort of know how to go about this. I solved for x, and I got that x>4 as my answer, but in my answer I have to write it as a linear point... more

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Trig Trigonometry Graphing Trig Functions

01/04/15

Sketch the graph of g(x)=arcsinx where g(x) is the inverse of f(x)=Sinx

So I'm given a graph where I am supposed to sketch/plot this and I have no idea as to how to go about it. If someone can guide me, I'd really appreciate it. Thank you!

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Trig Algebra 2 Trigonometry Math Help

01/04/15

A circle has the equation x2+y2-8x+14y+40=0. Express this equation in center-radius form.

Homework problem I can't figure out, there's two of these problems they're very similar but if someone can explain it to me step by step I think I can figure out the second one on my... more

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Trig Math Trigonometry

12/09/14

Find all solutions in [0, 2pi] for 2sin(x-pi/4)

Find all solutions in [0, 2pi] for 2sin(x-pi/4). Not really sure where to go with this problem. Possible addition/subtraction formula but again Im not really sure! Thanks!

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Trig Trigonometry

12/01/14