Previous 10 Questions — JEE Main 2021 (31 August Morning Shift)
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Three numbers are in an increasing geometric progression with common ratio r. If the middle number is doubled, then the…
Topic: JEE Main 2021 (31 August Morning Shift)
The function $f(x) = \left| {{x^2} - 2x - 3} \right|\,.\,{e^{\left| {9{x^2} - 12x + 4} \right|}}$ is not differentiable…
Topic: JEE Main 2021 (31 August Morning Shift)
Let $\overrightarrow a $ and $\overrightarrow b $ be two vectors such that $\left| {2\overrightarrow a + 3\overrightar…
Topic: JEE Main 2021 (31 August Morning Shift)
Let f be a non-negative function in [0, 1] and twice differentiable in (0, 1). If $\int_0^x {\sqrt {1 - {{(f'(t))}^2}} …
Topic: JEE Main 2021 (31 August Morning Shift)
The number of real roots of the equation ${e^{4x}} + 2{e^{3x}} - {e^x} - 6 = 0$ is :
Topic: JEE Main 2021 (31 August Morning Shift)
If $\mathop {\lim }\limits_{x \to \infty } \left( {\sqrt {{x^2} - x + 1} - ax} \right) = b$, then the ordered pair (a,…
Topic: JEE Main 2021 (31 August Morning Shift)
Next 10 Questions — JEE Main 2021 (31 August Morning Shift)
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The integral $\int {{1 \over {\root 4 \of {{{(x - 1)}^3}{{(x + 2)}^5}} }}} \,dx$ is equal to : (where C is a constant o…
Topic: JEE Main 2021 (31 August Morning Shift)
If p and q are the lengths of the perpendiculars from the origin on the lines,:- x cosec $\alpha$ $-$ y sec $\alpha$ = …
Topic: JEE Main 2021 (31 August Morning Shift)
cosec18$^\circ$ is a root of the equation :
Topic: JEE Main 2021 (31 August Morning Shift)
If the following system of linear equations 2x + y + z = 5, x $-$ y + z = 3, x + y + az = b has no solution, then :
Topic: JEE Main 2021 (31 August Morning Shift)
The length of the latus rectum of a parabola, whose vertex and focus are on the positive x-axis at a distance R and S (…
Topic: JEE Main 2021 (31 August Morning Shift)
If the function $f(x) = \left\{ {\matrix{ {{1 \over x}{{\log }_e}\left( {{{1 + {x \over a}} \over {1 - {x \over b}}}…
Topic: JEE Main 2021 (31 August Morning Shift)
If ${{dy} \over {dx}} = {{{2^{x + y}} - {2^x}} \over {{2^y}}}$, y(0) = 1, then y(1) is equal to :
Topic: JEE Main 2021 (31 August Morning Shift)
$\mathop {\lim }\limits_{x \to 0} {{{{\sin }^2}\left( {\pi {{\cos }^4}x} \right)} \over {{x^4}}}$ is equal to :
Topic: JEE Main 2021 (31 August Morning Shift)
If ${a_r} = \cos {{2r\pi } \over 9} + i\sin {{2r\pi } \over 9}$, r = 1, 2, 3, ....., i = $\sqrt { - 1} $, then the dete…
Topic: JEE Main 2021 (31 August Morning Shift)
