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If (sin alpha)^(x)+(cos alpha)^(x) ge 1,...

If `(sin alpha)^(x)+(cos alpha)^(x) ge 1,0 lt a lt (pi)/(2)` then

A

`n in [2,oo)`

B

`(-oo,2]`

C

`n in [-1,1]`

D

None of these

Text Solution

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The correct Answer is:
B
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