trignometry inequalities

1.Prove that sin²ⁿx + cos²ⁿx â‰¤ 1 for all x and nâ‰¥1

2 Answers

aⁿâ‰¤a (if |a|<1 and n>1)

Hence sin ²ⁿxâ‰¤sin²x

Same with cos..

Add to get 1 :)

thank you very much

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