Question

help with proof I'm stuck at this point. image link -http://imgur.com/pyjXEqv

Answer 1

did you try ..

Answer 2

changing to sin and cos

Answer 3

how so?

Answer 4

@ganeshie8 please?

Answer 5

combine the fractions

Answer 6

If you multiply the top and bottom of the fraction by (cosx)^2, you end up with the double angle formula on the left and double angle on the right

Answer 7

working @ArkGoLucky ....

Answer 8

these dang online programs aren't forgiving at all i can't seem to figure it out i have the answers

Answer 9

got it thanks these things are finicky peace