(More) Trig Identities

[ds197]

making the sides = to each other is sometimes difficult for me

I would really appreciate if someone could explain a thorough detail of the steps

 

[HallsofIvy]

making the sides = to each other is sometimes difficult for me

I would really appreciate if someone could explain a thorough detail of the steps

An obvious first step would be to "cross multiply"- that is, multiply each side by the two denominator to get rid of the fractions.

Then simplify by using "$\displaystyle sin^2(\theta)+ cos^2(\theta)= 1$".

 

[mmm4444bot]

making the sides = to each other is sometimes difficult for me

I would really appreciate if someone could explain a thorough detail of the steps

This is a tutoring web site; we don't post step-by-step solutions to homework. We ask that you follow the forum guidelines. You can start with this link to the summary page. Thank you!

Proving identities take practice. Do you have a list of the basic identities handy? Show us what you've already tried, even if you think that it's wrong.

 

[stapel]

An obvious first step would be to "cross multiply"- that is, multiply each side by the two denominator to get rid of the fractions.

If one is solving an equation, then this could be a useful step. However, for proving identities, one must operate on the left- and right-hand sides separately.