I need this solution urgently please......

I need this solution urgently please......

I am to prove this identity to be correct. And I don't know what side to begin with...since I started with the left and made tan into sin/cos.

Need help proving this identity

I have to prove that the identity is correct. But not quite sure how to do so.

from the top of a building a person spots two boats out on the lake. the angle of depression from the person to one of the boats is 48 degrees, the angle of depression from the person to the other...

Let theta be an angle in quadrant II such that cos(theta) = -4/7 Find the exact values of csc(theta) and tan(theta)

Prove this identity. Help me please

I have to prove the identity. But need help

A) -1 B) 1 C) 0 D) undefined E) none of these

How would I prove this identity

I must prove the following identity.

1.Why is it necessary to prove a trigonometric identity before using the identity? 2. If the identity 1+cot x=csc x is used in the proof of another identity, for what values of x is the proof...

I have to simplify that particular expression. But I thought that maybe the cos would cancel. I'm not sure what to do

how can I proof that( sine alpha + cos alpha) <= 1/2, using the fact that sine (- beta) and cos (-beta) = cos beta?

I need to know how to simplify this expression

I thought it'd be (1 / cos(θ)2) * (1 / tan(θ)) * (cos(θ) / 1) Which would get you cos(θ) / cos(θ)2 * tan(θ) And then coming out to 1 / cos(θ) *...

This is a trigonometric Identity related question.

prove the following identity. 1-cosθ/sin2θ = 1/1+cosθ thanks!

(sin2∅-1)/(tan2) = (1/sin2∅)-1

(sin2∅-1)/tan2∅-1=(1/sin2∅)-1

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