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Grade: 11
        
If Pn =CosA+SinnA; (n belongs to N and n>2)
 then( Pn-Pn+2)/(Pn-2 )    is independent of A anfd equal to sin2A.Cos2A
one year ago

Answers : (1)

Deepak Kumar Shringi
askIITians Faculty
4398 Points
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one year ago
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