prove that sex2 x - tan2x =1
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=>use the formula sin^2x+cos^2x=1
=>divide the whole thing by cos^2x
=>sin^2x/cos^2x+cos^2x/cos^2x=1/cos^2x
=>tan^2x+1=sec^2x
=>sec^2x-tan^2x=1
HOPE IT HELPS U :)
=>divide the whole thing by cos^2x
=>sin^2x/cos^2x+cos^2x/cos^2x=1/cos^2x
=>tan^2x+1=sec^2x
=>sec^2x-tan^2x=1
HOPE IT HELPS U :)
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