# What is meant by odd or even multiple of pi/2 ?

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 its called even multiple of pi/2

Simple...

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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 its called even multiple of pi/2

Simple...

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