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If f(theta) = |sin theta| + |cos theta|,...

If `f(theta) = |sin theta| + |cos theta|,theta in RR,` then `f(theta)` is in the interval

A

[0,2]

B

`[1,sqrt2]`

C

`[1,2]`

D

[0,1]

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The correct Answer is:
B
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