The equation \( (\cos p-1) x^{2}+\cos p x+\sin p=0 \), in variable \( x \), has real roots. Then...
Channel:
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=KccPlxvikvQ
The equation \( (\cos p-1) x^{2}+\cos p x+\sin p=0 \), in variable \( x \), has real roots. Then, \( p \) belongs to the interval
(A) \( (0,2 \pi) \)
(B) \( (-8,0) \)
(C) \( \left(-\frac{\pi}{2}, \frac{\pi}{2}\right) \)
(D) \( (0, \pi) \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live