Proving identities

Proving identities

I know this is with the sum-to-product identity, but I need help with the steps.

Presentation 118k

SHOWS USE OF SUM TO PRODUCT IDENTITY TO FIND GIVEN IDENTITY

Presentation 81k

EXAMPLE SHOWS USE OF SUM TO PRODUCT IDENTITY TO PROVE GIVEN IDENTITY

Presentation 80k

AN EXAMPLE OF THE USE OF SUM TO PRODUCT FORMULA TO FIND IDENTITY

show that 1/(1-cos x) - 1/(1+cos x)=2cosec x cot x

I know how to get the answer, but for some reason, they want it in this format and I'm not sure how to do it this way.

Its two questions Prove if this is true or false 1-sinϴ • cosϴ •tanϴ=cos^2ϴ and cos^2ϴ • tanϴ= sinϴ

Presentation 72k

THIS FILE CONTAINS A POWERPOINT DEMONSTRATING HOW TO SOLVE A TRIGONOMETRIC EQUATION

Presentation 121k

THIS FILE CONTAINS A POWERPOINT DEMONSTRATING HOW TO SOLVE A TRIGONOMETRIC EQUATION

4 sin x cos x - 2√3 sin x - 2√2 cos x +√6=0 interval 0≤x<2pi

There are 2 possible answers I can choose from. Either Bounded or Continuous

This is translated from a trigonometry problem in another language, I hope you understand it.

If sin(x) = 1/4 and x is in quadrantI,find the exact values of the expressions without solving for x. (a) sin(2x) (b) cos(2x) (c) tan(2x)

Given that sin(a)=2/3 and cos(b)=-1/5, with a and b both in the interval of pi - pi/2

Hello! I am having some trouble verifying a trig identity sin(4x)=4cos^3(x)sin(x)-4sin^3(x)cos(x)

a) tan^2(theta)+cos^2(theta) b) 2tan(theta)cot(theta) c) 2cot^2(theta)-1 d) sec^2(theta)+csc^2(theta)

Prove sec2x-1=sec2xsin2x, justify significant steps. (state identities used)

Please help me answer the following question! I'm stuck! Prove that cos6ß + sin6ß = 1/4 + 3/4cos2ß I've tried simplifying out the LHS into (cos2ß)3 + (sin2ß)3,...

This is my work. tanx = -2sinx sinx/cosx = -2sinx sinx = -2sinxcosx (multiply by cosx) 1 = -2cosx (divide...

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