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manoj jangra Grade: 12
        

Prove that sin2n+  cos2nx ≤ 1 for all x and n≥1

7 years ago

Answers : (1)

bibhash jha
15 Points
										

Dear Manoj,


 


0<=sin^2(x) ,cos^2(x)<=1 for all x


therefore , sin^2n(x) <=sin^2x and cos^2n(x)<=cos^2(x) for n>=1


 


adding both we get  sin2nx +  cos2nx ≤ 1


 


 

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Bibhash

7 years ago
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