Math, asked by meghanbhat5, 4 months ago

Find the principal value of cos−1(1)

Answers

Answered by AkashMathematics
3

Answer:ANSWER

We need to find the principal value of cos

−1

(−1)

Let y=cos

−1

(−1)

⇒cosy=(−1)

cosy=cosπ

Hence the principal value of cos

−1

(−1) is π

Step-by-step explanation:

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