prove that cos(90°-θ)/tan(180°+θ)=cos(360°-θ)

prove that cos(90°-θ)/tan(180°+θ)=cos(360°-θ)

(1-cos^2x)/tan^2x=cos^2x

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

how do you prove this identity (using a level maths)

Suppose the θ is an acute angle and cosθ = 4/5. Using the results sin2x = 1/2*(1 - cos2x) and cos2x = 1/2*(1 + cos2x), find the exact values of cos1/2θ,...

pi/3, pi, pi/6 or 11pi/3??

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

Here is the question I'm stuck on: The motion of point P is given by the following equations: x(t) = -2 sin (t) cos (t) y(t) = cos (2t) The...

Precalculus

Precalculus

Precalculus

I don’t know the answer .

25 cos(2t)+12 sin(t+π/2)+2 cos^2(t)

precalculus

This is the questions I'm stuck on: Solve algebraically: f(x) = g(x) when f(x) = 4sin(2x)cos(2x)+2 and g(x)= 4sin(3x)sin(2x) + 2 1. I equated the equations ...

Math question

cos(x-y) / sin(x)sin(y) = cot(x)cot(y)+1

The angle theta is in the first quadrant and sin of theta = 2/sqrt(13) determine the possible coordinates for point P on the terminal arm

if sin of A = 5/13, in quad 1, find tan A/2 if cos of A = -4/5, in quad 2, find sin A/2 if cos A =-4/5 in quad 2, find cos A/2 if cos A - -4/5 in quad...

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

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