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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

has infinitely many real roots

B

has exactly one real root

C

has exactly 2n+2 real roots

D

has exactly 2n+3 real roots

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The correct Answer is:
d
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