[JEE Main 2006] all values of m for which both roots of x 2 2mx m 2
All values of $m$ for which both roots of $x^2-2mx+m^2-1=0$ are greater than $-2$ but less than $4$ lie in
(a) $-2<m<0$
(b) $m>3$
(c) $-1<m<3$
(d) $1<m<4$
1 Answer
VAVidaara Admin
✓ Vidaara Team
✓ Accepted
· 2d ago
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Correct answer: (c) $-1<m<3$
Roots are $m\pm1$; $m-1>-2\Rightarrow m>-1$ and $m+1<4\Rightarrow m<3$, so $-1<m<3$.
JEE Main 2006 · Quadratic Equations and Inequations — verified solution by the Vidaara Team.
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