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The equation (cosp-1)^x^2+(cos p)x+s in ...

The equation `(cosp-1)^x^2+(cos p)x+s in p=0` in the variable `x` has real roots. The `p` can take any value in the interval `(0,2pi)` (b) `(-pi)` (c) `(-pi/2,pi/2)` (d) `(,pi)`

A

`(0, 2pi)`

B

`(-pi,0)`

C

`(-(pi)/(2), (pi)/(2))`

D

`(0, pi)`

Text Solution

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The correct Answer is:
D
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