SOLUTION: Verify each trig equation by subtituting identities to match the right hand side of the equation to the left hand side of the equation. -tan^2x + sec ^2x =1

Algebra ->  Rational-functions -> SOLUTION: Verify each trig equation by subtituting identities to match the right hand side of the equation to the left hand side of the equation. -tan^2x + sec ^2x =1      Log On


   

Question 767186: Verify each trig equation by subtituting identities to match the right hand side of the equation to the left hand side of the equation.

-tan^2x + sec ^2x =1
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
-tan%5E2%28x%29+%2B+sec+%5E2%28x%29+=1
start with left side
-sin%5E2%28x%29%2F%28cos%5E2%28x%29%29+%2B+1%2Fcos+%5E2%282x%29
%281-sin%5E2%28x%29%29%2Fcos%5E2%28x%29=cos%5E2%28x%29%2Fcos%5E2%28x%29=1
verified: left side=right side