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(1+cotx + tanx)(sinx - cosx)÷ sec^3 …

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(1+cotx + tanx)(sinx - cosx)÷ sec^3 x - cos^3 x = sin^2 x cos^2 x
  • 2 answers

Harsh Mishra 6 years, 5 months ago

=(sinx.cosx + 1)/(1+cosx.sinx)×(sinx.cosx)
=sinx.cosx
=R.H.S
Hence,Proved.
{ I have used the identity.
 }
 

Harsh Mishra 6 years, 5 months ago

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