Question

Prove the following Identity: 1/cosTheta-cosTheta/1+sinTheta=tanTheta

Answer 1

\[\frac{ 1 }{ \cos \theta }-\frac{ \cos \theta }{ 1+\sin \theta }=\tan\]

Answer 2

So far, I combined the LHS then multiplied the numerator and denominator by the inverse of the denominator. Unfortunately, I'm not sure if I'm doing it right.

Answer 3

i'd have tø to LHS and cø/(1+sø) to rhs. denominators on LHS then both cosø. thne cross multiply.

Answer 4

I'm sorry, there are icons that are not showing up.

Answer 5

screen refresh. it's a problem a lot of the time.

Answer 6

WITH MAC SPECIAL CHARACTERS AND TYPO'S REMOVED:

i'd have moved tan(theta) to LHS and cos(theta)/(1+sin(theta)) to rhs. denominators on LHS then both cos(theta). then cross multiply.

Answer 7

Sorry, it took awhile for my screen to refresh.

Answer 8

Sorry if it's dim, but this is what I've done so far.

Answer 9

I can move tan theta to the other side and solve from there? I thought I would have to find the answer on the LHS to get to the RHS

Answer 10

what i meant!