If f(x)= cc 3 x x , & x 0 k 2 , & x=0 . is continuous at x=0, then the value of k is

If f(x)= cc 3 x x , & x 0 k 2 , & x=0 . is continuous at x=0, the…

If $A + B + C =180^{\circ}$, then the value of $\cot \frac{ A }{2}+\cot \frac{ B }{2}+\cot \frac{ C }{2}$ will be

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Sum to infinity of a G.P. $5,-\frac{5}{2}, \frac{5}{4},-\frac{5}{8}, \frac{5}{16}, \ldots$ is

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The mean deviation for n observations $x_1, x_2, ...,x_n$ from their mean $\overline{\text{X}}$ is given by:

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The number of diagonals that can be drawn by joining the vertices of an octagon is :

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If f is continuous at $x=0$, where $f (x)=\frac{\left( e ^{3 x}-1\right) \sin x^{\circ}}{x^2}, x \neq 0$, then $f (0)$ is

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$\sqrt{-8-6 i}=$

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If $f(x)=\left(\frac{4+5 x}{4-7 x}\right)^{\frac{4}{x}}$, for $x \neq 0$ and $f(0)=k$, is continuous at $x=0$, then $k$ is

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If $\sec \theta=1 \frac{1}{4}$, then $\tan \frac{\theta}{2}=$

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The number of solutions of $x^2+ |x−1| = 1$ is:

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If the length of the tangent segment from the point (5, 3) to the circle
$x^2+y^2+10 x+ k y-17=0$ is 7, then k equals

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