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Recent questions tagged question-paper-3

If the straight line $y=mx$ is outside the circle $x^2+y^2-20y +90=0$ then

asked Mar 10, 2015 by meena.p

1 answer

The lengths of the sides of a triangle $\alpha -\beta , \alpha+\beta $ and $\sqrt {3 \alpha^2+\beta^2},(\alpha > \beta > 0)$. Its largest angle is

asked Mar 10, 2015 by meena.p

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Sum of the infinite series $1+ \large\frac{3}{2 !}+\frac{6}{3 !}+\frac{10}{4 !}+....$

asked Mar 10, 2015 by meena.p

1 answer

If $a,b,c$ are in arithmetic progression , then $\large\frac{1}{\sqrt a +\sqrt b}, \frac{1}{\sqrt a +\sqrt c},\frac{1}{\sqrt b +\sqrt c}$ are in

asked Mar 10, 2015 by meena.p

1 answer

A point starts moving from $(1,2) $ and its projections on x and y axis are moving with velocities of $3 m/s$ and $2 m/s$ respectively. Its locus is

asked Mar 10, 2015 by meena.p

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The area of the region bounded by the curves $y=x^2$ and $y =|x|$ is

asked Mar 10, 2015 by meena.p

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ABC is an isosceles triangle right angled at A. Forces of magnitude $2 \sqrt 2,5 $ and $6$ act along $\overrightarrow {BC},\overrightarrow{CA}$ and $\overrightarrow {AB}$ respectively. The magnitude of their resultant force is

asked Mar 10, 2015 by meena.p

1 answer

If vector $\overrightarrow{A} =2 \overrightarrow{i}+3 \overrightarrow{j}+4 \overrightarrow{k};\overrightarrow{B}=\overrightarrow{i}+\overrightarrow{j}+5 \overrightarrow{k}$ and $\overrightarrow{c}$ form a left handed system , then $ \overrightarrow{C}$ is

asked Mar 10, 2015 by meena.p

1 answer

If $ \overrightarrow {a},\overrightarrow {b},\overrightarrow {c} $ are non - coplanar vectors and $ \overrightarrow {d} = \lambda \overrightarrow {a}+\mu \overrightarrow {b}+ v \overrightarrow {c}$ then $\lambda$ is

asked Mar 10, 2015 by meena.p

1 answer

Locus of the point z satisfying the equation $|iz-1|+|z-i|=2$ is

asked Mar 10, 2015 by meena.p

1 answer

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