pls help me with this question, been working on it for quite some time but still can't figure it out:
Given cosecA+cotA=3, evaluate cosecA-cotA and cosA.
Follow Math Help Forum on Facebook and Google+
Solve for, .
I suspect it's cleaner if you remember relationships between the cosecant and cotangent, but I never do. I always have to look them up.
Okay, you do cos(A).
Last edited by TKHunny; August 5th 2007 at 08:23 PM.
Hello, wadevala! Given: . , .evaluate: . Note that: . We have: .
Multiply by . .
Therefore: . Evaluate:
We have: .
Square: . . . which simplifies to: .
and we have: .
thx for the different ways of going about solving the qns, i understand it much better now
View Tag Cloud