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Question

Find the period of the function f(x)=|sinx|+|cosx|

A
π2
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B
π
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C
2π
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D
none of these
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Solution

The correct option is B π2
Given f(x)=|sinx|+|cosx|.
Now,
f(π2+x)=|cosx|+|sinx|=f(x).
So π2 is the least number such that f(π2+x)=f(x).
So period of the function is π2.

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