Qus : 1
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Binomial Theorem
2
For $x \in \mathbb{R}$,
$f(x) = |\log 2 - \sin x|$
and
$g(x) = f(f(x))$,
then:
1
$g$ is not differentiable at $x = 0$
3
$g'(0) = -\cos(\log 2)$
4
$g$ is differentiable at $x = 0$ and $g'(0) = -\sin(\log 2)$
✓ Solution
Qus : 2
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Limit
1
Let
$ p = \displaystyle \lim_{x \to 0^{+}} \left(1 + \tan^{2}\sqrt{x}\right)^{\tfrac{1}{x}} $
then $\log p$ is equal to:
✓ Solution
Qus : 3
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Complex Number
2
A value of $\theta$ for which
$ \displaystyle \frac{2 + 3i \sin \theta}{1 - 2i,} \cdot \frac{1}{\sin \theta} $
is purely imaginary, is:
1
$ \sin^{-1}\left(\dfrac{\sqrt{3}}{4}\right) $
2
$ \sin^{-1}\left(\dfrac{1}{\sqrt{3}}\right) $
✓ Solution
Qus : 4
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Statistics Measures of Central Tendency
2
If the standard deviation of the numbers $2, 3, a,$ and $11$ is $3.5$,
then which of the following is true?
1
$3a^{2} - 26a + 55 = 0$
2
$3a^{2} - 32a + 84 = 0$
3
$3a^{2} - 34a + 91 = 0$
4
$3a^{2} - 23a + 44 = 0$
✓ Solution
Qus : 5
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Probability
4
Let two fair six-faced dice $A$ and $B$ be thrown simultaneously.
If $E_{1}$ is the event that die $A$ shows up four,
$E_{2}$ is the event that die $B$ shows up two,
and $E_{3}$ is the event that the sum of numbers on both dice is odd,
then which of the following statements is NOT true?
1
$E_{1}$ and $E_{2}$ are independent.
2
$E_{2}$ and $E_{3}$ are independent.
3
$E_{1}$ and $E_{3}$ are independent.
4
$E_{1}$, $E_{2}$ and $E_{3}$ are independent.
✓ Solution
Qus : 6
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Differential Equation
2
If a curve $y = f(x)$ passes through the point $(1,-1)$ and satisfies the differential equation
$ y(1+xy),dx = x,dy $,
then $ f\left(-\dfrac{1}{2}\right) $ is equal to:
✓ Solution
Qus : 7
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Area enclosed between the curves Definite Integration
4
The area (in sq. units) of the region
$ {(x,y) : y^{2} \ge 2x \ \text{and} \ x^{2} + y^{2} \le 4x,\ x \ge 0,\ y \ge 0} $
is:
1
$ \pi - \dfrac{4\sqrt{2}}{3} $
2
$ \dfrac{\pi}{2} - \dfrac{2\sqrt{2}}{3} $
✓ Solution
Qus : 8
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Indefinite Integration
4
The integral
$ \displaystyle \int \frac{2x^{12} + 5x^{9}}{(x^{5} + x^{2} + 1)^{3}}, dx $
is equal to:
1
$ \displaystyle -\frac{x^{5}}{2(x^{5}+x^{2}+1)^{2}} + C $
2
$ \displaystyle -\frac{x^{10}}{2(x^{5}+x^{2}+1)^{2}} + C $
3
$ \displaystyle -\frac{x^{5}}{(x^{5}+x^{2}+1)^{2}} + C $
4
$ \displaystyle \frac{x^{10}}{2(x^{5}+x^{2}+1)^{2}} + C $
✓ Solution
Qus : 9
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Matrices
4
The system of linear equations
$ x + \lambda y - z = 0 $
$ \lambda x - y - z = 0 $
$ x + y - \lambda z = 0 $
has a non-trivial solution for:
1
infinitely many values of $\lambda$
2
exactly one value of $\lambda$
3
exactly two values of $\lambda$
4
exactly three values of $\lambda$
✓ Solution
Qus : 10
🎓 JEE MAIN 📅 Year: 2016 📚 Mathematics 🏷 Maxima and Minima
1
A wire of length $2$ units is cut into two parts which are bent respectively to form a square of side $= x$ units and a circle of radius $= r$ units.
If the sum of the areas of the square and the circle so formed is minimum, then:
✓ Solution