Question

How would you solve these questions using Trigonomic Identities?

sin^2x = tan^2x/1+tan^2x

sinx+cosx/tanx = 1/cosxtanx

Nov 4, 2012

1+tan^2 = sec^2
so, the Right side is

tan^2/sec^2
= sin^2/cos^2 * cos^2
= sin^2

Nov 4, 2012

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