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If P n =Cos n A+Sin n A; (n belongs to N and n>2) then( Pn-P n+2) /(P n-2 ) is independent of A anfd equal to sin 2 A.Cos 2 A

If Pn =Cosn A+SinnA; (n belongs to N and n>2)
 then( Pn-Pn+2)/(Pn-2 )    is independent of A anfd equal to sin2A.Cos2A

Grade:11

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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