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anonymous
 5 years ago
verify the identity:
cos x+sin x tan x=sec x
anonymous
 5 years ago
verify the identity: cos x+sin x tan x=sec x

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slaaibak
 5 years ago
Best ResponseYou've already chosen the best response.1LHS: cos x + sin^2 x/cos x = (cos^2 x + sin^2 x)/cos x = 1/cosx =sec x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sinx tanx = secx cos x =(1/cosx)cosx =(1  cos^2x)/cosx = (sin^2x)/cosx = sinx sinx/cosx = sinx tanx
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