[JEE Advanced 1994] the number of points of intersection of y 2 sin x and y 5x
The number of points of intersection of $y=2\sin x$ and $y=5x^2+2x+3$ is
(a) $0$
(b) $1$
(c) $2$
(d) $\infty$
1 Answer
VAVidaara Admin
✓ Vidaara Team
✓ Accepted
· 2d ago
▲ 0
Correct answer: (a) $0$
The parabola has minimum $\frac{14}5=2.8$ (at $x=-\frac15$), which exceeds the maximum $2$ of $2\sin x$. No intersection.
JEE Advanced 1994 · Quadratic Equations and Inequations — verified solution by the Vidaara Team.
Log in to post your own answer or join the discussion.
No comments yet — start the discussion.