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The equation (cosp - 1) x^2 +cosp x + si...

The equation `(cosp - 1) x^2 +cosp x + sinp = 0` where x is a variable, has real roots. then the interval of p may be any one of the following :

A

`(0,2pi)`

B

`(-pi,0)`

C

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

D

`(0,pi]`

Text Solution

Verified by Experts

The correct Answer is:
D
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