JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

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Application +4 | -1

The equation

\left( {\cos \,p - 1} \right){x^2} + \left( {\cos \,p} \right)x + \sin p = 0

, where

x

is a variable, has real roots. Then, the interval of

p

may be any one of the following:

View answer and explanation

Correct option: D

\left( {0,\;\,\pi } \right)

Option D (

\left( {0,\;\pi } \right)

) is correct because the condition for real roots of the quadratic equation is satisfied within this interval.

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