cos x.cos x/ 1 + tan x
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what do I have to do in this? simplify?
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Cos^2x/y1+tanx
=1+cos2x/2/1+tanx
=1+1-tan^2x/1+ tan^2x/2(1+tanx)
1/(1+tanx)(1+tan^2x)
=1+cos2x/2/1+tanx
=1+1-tan^2x/1+ tan^2x/2(1+tanx)
1/(1+tanx)(1+tan^2x)
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