Twenty meters of wire is available for fencing off a flower-bed in the form of a circular sector. Then the maximum area (in sq. m) of the flower-bed, is :
Previous 10 Questions — JEE Main 2017 (Offline)
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The integral $\displaystyle \int_{\pi/4}^{3\pi/4}\dfrac{dx}{1+\cos x}$ is equal to :
Topic: JEE Main 2017 (Offline)
Let $I_n=\int \tan^{n}x,dx,\ (n>1)$.
If $I_4+I_6=a\tan^{5}x+bx^{5}+C$, where $C$ is a constant of integration,
then the…
Topic: JEE Main 2017 (Offline)
The area (in sq. units) of the region
${(x,y): x\ge 0,\ x+y\le 3,\ x^{2}\le 4y\ \text{and}\ y\le 1+\sqrt{x}}$ is :
Topic: JEE Main 2017 (Offline)
If $(2+\sin x)\dfrac{dy}{dx}+(y+1)\cos x=0$ and $y(0)=1$, then $y\left(\dfrac{\pi}{2}\right)$ is equal to :
Topic: JEE Main 2017 (Offline)
Let k be an integer such that the triangle with vertices (k,-3k), (5,k) and (-k,2) has area 28 sq. units. Then the orth…
Topic: JEE Main 2017 (Offline)
Let $\vec{a}=2\hat{i}+\hat{j}-2\hat{k}$ and $\vec{b}=\hat{i}+\hat{j}$.
Let $\vec{c}$ be a vector such that $|\vec{c}-\v…
Topic: JEE Main 2017 (Offline)
For three events A, B and C, P(Exactly one of A or B occurs) = P(Exactly one of B or C occurs) = P(Exactly one of C or …
Topic: JEE Main 2017 (Offline)
If two different numbers are taken from the set {0,1,2,3,...,10} then the probability that their sum as well as absolut…
Topic: JEE Main 2017 (Offline)
Let $\omega$ be a complex number such that $2\omega + 1 = z$ where $z = \sqrt{-3}$.
If
$\begin{vmatrix}
1 & 1 & 1 \\…
Topic: JEE Main 2017 (Offline)
If $5\left(\tan^{2}x-\cos^{2}x\right)=2\cos2x+9$,
then the value of $\cos4x$ is:
Topic: JEE Main 2017 (Offline)