Q.
The possible value of p for which graph of the function f(x)=2p2−3ptanx+tan2x+1 does not lie below x -axis for all x∈−π2,π2 is
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
0
b
4
c
3
d
8
answer is A.
(Unlock A.I Detailed Solution for FREE)
Detailed Solution
Let tanx=t∈R y=t2−3pt+2p2+1,t∈RGraph does not lie below x- axis,∴ D≤0∴ 9p2−42p2+1≤0⇒ p2−4≤0⇒ p∈[−2,2]
Watch 3-min video & get full concept clarity