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Recent questions tagged q67

The condition $f(x)=x^3+px^2+qx+r(x \in R)$ to have no extreme value, is

asked Oct 28, 2013 by meena.p

1 answer

Corvus splendens insolens is the subspecies of crow found in

asked Oct 18, 2013 by thanvigandhi_1

1 answer

The angle between the curves $y^2=4x+4$ and $y^2=36(9-x)$ is

asked Oct 18, 2013 by meena.p

1 answer

$\large\frac{d}{dx}$$ \bigg[a \tan ^{-1} + b \log \bigg(\large\frac{x-1}{x+1}\bigg)\bigg]=\frac{1}{x^4-1}$$=>a-2b=$

asked Oct 10, 2013 by meena.p

1 answer

Find the area of the $\Delta$ if $a=18,b=24,c=30$

asked Oct 10, 2013 by sreemathi.v

1 answer

Match the following

asked Oct 6, 2013 by thanvigandhi_1

1 answer

$f(x) = \sin x + \cos x=>f(x)=> f \bigg(\large\frac{\pi}{4}\bigg) $$ f^{(iv)} \bigg (\large\frac{\pi}{4}\bigg)=$

asked Sep 27, 2013 by meena.p

1 answer

If the line $y=2x+c,$ is a tangent to the circle $x^2+y^2=5,$ then a value of c is

asked Sep 23, 2013 by meena.p

1 answer

$\large\frac{d}{dx}$$ [(x+1)(x^2+1)(x^4+1)(x^8+1)]=(15x^p-16x^q+1)(x-1)^{-2}=>(p,q)=$

asked Sep 17, 2013 by meena.p

1 answer

What would be the angular speed of earth, so that bodies lying on equator may appear weightless? $(g=10 m/s^2\; R=6400km)$

asked Aug 23, 2013 by meena.p

1 answer

A body moves a distance 10m along a straight line under the action of force $5N.$ If the work done is $25J$, the angle which the direction of motion of body is

asked Aug 6, 2013 by meena.p

1 answer

Three equal masses of mass m each are hanging on a string passing over a fixed palley as shown. What is the tension in the string connecting weight B and C

asked Jul 12, 2013 by meena.p

1 answer

A particle moves in xy plane. The position vector of particle at any time t is $\overrightarrow r=\{(2t) i+(2t^2)j\}\; m$. The rate of change of $\theta$ at time $t= 2\;$ seconds is ( $\theta$ is the angle which its velocity vector makes with positive x-axis )

asked Jun 29, 2013 by meena.p

1 answer

The area bounded by the line $y=x,$ the $x$-axis,the ordinates $x=1,x=2$ is

asked May 22, 2013 by poojasapani_1

1 answer

If $p$ represents the veriable complex number $z$ and if $|2z-1|=2|z|$ then the locus of $p$ is

asked May 12, 2013 by poojasapani_1

1 answer

Evaluate:$\int _0 ^{\pi/2} \frac {1}{2 \cos x+4 \sin x}dx$

asked Feb 3, 2013 by meena.p

0 answers

Find the interval in which the function $f(x)=x^4-4x^3+4x^2+15$ is increasing or decreasing.

asked Jan 29, 2013 by meena.p

0 answers

The order and degree of the differential equation $\bigg(\frac{d^3y}{dx^3}\bigg)^2+3\frac{d^2y}{dx^2}+2\bigg(\frac{dy}{dx}\bigg)^4=y^4$ are

asked Jan 20, 2013 by sreemathi.v

1 answer

Let $P(A)=\Large\frac{7}{13}$,$P(B)=\Large\frac{9}{13}$ and $P(A\cap B)=\Large\frac{4}{13}$. Then P(A|B) is equal to

asked Jan 10, 2013 by sreemathi.v

1 answer

Verify the Rolle's theorem for the function $log(x^2+2)-log 3\;in\;[-1,1]$

asked Jan 2, 2013 by sreemathi.v

1 answer

On using elementary row operations $R_2\times R_1-3R_2$ in the following matrix equation $\begin{bmatrix}4 & 2\\3 & 3\end{bmatrix}=\begin{bmatrix}1 & 2\\0 & 3\end{bmatrix}\begin{bmatrix}2 & 0\\1 & 1\end{bmatrix}$,we have:

asked Dec 24, 2012 by sreemathi.v

1 answer

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