If $x$ is real, the expression $\frac{{x + 2}}{{2{x^2} + 3x + 6}}$ takes all value in the interval
$\left( {\frac{1}{{13}},\frac{1}{3}} \right)$
$\left[ { - \frac{1}{{13}},\frac{1}{3}} \right]$
$\left( { - \frac{1}{3},\frac{1}{{13}}} \right)$
None of these
The maximum possible number of real roots of equation ${x^5} - 6{x^2} - 4x + 5 = 0$ is
Number of natural solutions of the equation $xyz = 2^5 \times 3^2 \times 5^2$ is equal to
Consider the following two statements
$I$. Any pair of consistent liner equations in two variables must have a unique solution.
$II$. There do not exist two consecutive integers, the sum of whose squares is $365$.Then,
One root of the following given equation $2{x^5} - 14{x^4} + 31{x^3} - 64{x^2} + 19x + 130 = 0$ is
If $\alpha ,\beta,\gamma$ are the roots of equation $x^3 + 2x -5 = 0$ and if equation $x^3 + bx^2 + cx + d = 0$ has roots $2 \alpha + 1, 2 \beta + 1, 2 \gamma + 1$ , then value of $|b + c + d|$ is (where $b,c,d$ are coprime)-