Question

cos (even multiple of pi/2) =?​

Answer 1

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Solution:- Odd multiple means (n+1)

Even multiple means n

Where n is even

So, the odd multiple= π/2, 3π/2....

Even multiple= π, 2π

Explanation: -

When you multiply pi/2 with any odd integer then its odd multiple of pi/2, and when you multiply an even integer to pi/2 then it’s called the even multiple of pi/2.

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