1
JEE Main 2020 (Online) 3rd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If x3dy + xy dx = x2dy + 2y dx; y(2) = e and
x > 1, then y(4) is equal to :
A
$${{\sqrt e } \over 2}$$
B
$${1 \over 2} + \sqrt e $$
C
$${3 \over 2} + \sqrt e $$
D
$${3 \over 2}\sqrt e $$
2
JEE Main 2020 (Online) 3rd September Evening Slot
Numerical
+4
-0
Change Language
The total number of 3-digit numbers, whose sum of digits is 10, is __________.
Your input ____
3
JEE Main 2020 (Online) 3rd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The probability that a randomly chosen 5-digit number is made from exactly two digits is :
A
$${{150} \over {{{10}^4}}}$$
B
$${{134} \over {{{10}^4}}}$$
C
$${{121} \over {{{10}^4}}}$$
D
$${{135} \over {{{10}^4}}}$$
4
JEE Main 2020 (Online) 3rd September Evening Slot
Numerical
+4
-0
Out of Syllabus
Change Language
Let a plane P contain two lines
$$\overrightarrow r = \widehat i + \lambda \left( {\widehat i + \widehat j} \right)$$, $$\lambda \in R$$ and
$$\overrightarrow r = - \widehat j + \mu \left( {\widehat j - \widehat k} \right)$$, $$\mu \in R$$
If Q($$\alpha $$, $$\beta $$, $$\gamma $$) is the foot of the perpendicular drawn from the point M(1, 0, 1) to P, then 3($$\alpha $$ + $$\beta $$ + $$\gamma $$) equals _______.
Your input ____
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