# Proving Trigonometric identities

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• April 8th 2009, 04:55 AM
oneway1225
Proving Trigonometric identities
can't figure out how to solve this problem please help

sec^2(x)+csc^2(x)=sec^2(x)*csc^2(x)
• April 8th 2009, 05:00 AM
ADARSH
Quote:

Originally Posted by oneway1225
can't figure out how to solve this problem please help

sec^2(x)+csc^2(x)=sec^2(x)*csc^2(x)

$\frac{1}{sin^2(x)} + \frac{1}{cos^2(x)}$

$=\frac{cos^2(x)+sin^2(x)}{sin^2(x)cos^2(x)}$

Using formula

sin^2(x) +cos^2(x)=1

$\frac{1}{cos^2(x)sin^2(x)}$

$sec^2(x)csc^2(x)$