SOLUTION: please help me solve:
verify identity:
cosx(tan^2x+1)=secx
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Question 621607: please help me solve:
verify identity:
cosx(tan^2x+1)=secx
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
verify identity:
cosx(tan^2x+1)=secx
start with left side
cosx[(sin^2x/cos^2x)+1]
=cosx(cos^2x+sin^2x)/cos^2x
=cosx(1)/cos^2x
1/cosx=secx
verified:
left side=right side
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