1
JEE Main 2024 (Online) 27th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If A denotes the sum of all the coefficients in the expansion of $\left(1-3 x+10 x^2\right)^{\mathrm{n}}$ and B denotes the sum of all the coefficients in the expansion of $\left(1+x^2\right)^n$, then :
A
$\mathrm{B}=\mathrm{A}^3$
B
$3 \mathrm{A}=\mathrm{B}$
C
$A=3 B$
D
$\mathrm{A}=\mathrm{B}^3$
2
JEE Main 2024 (Online) 27th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The function $f: \mathbf{N}-\{1\} \rightarrow \mathbf{N}$; defined by $f(\mathrm{n})=$ the highest prime factor of $\mathrm{n}$, is :
A
one-one only
B
neither one-one nor onto
C
onto only
D
both one-one and onto
3
JEE Main 2024 (Online) 27th January Morning Shift
Numerical
+4
-1
Change Language
If $8=3+\frac{1}{4}(3+p)+\frac{1}{4^2}(3+2 p)+\frac{1}{4^3}(3+3 p)+\cdots \cdots \infty$, then the value of $p$ is ____________.
Your input ____
4
JEE Main 2024 (Online) 27th January Morning Shift
Numerical
+4
-1
Change Language
If the solution of the differential equation

$(2 x+3 y-2) \mathrm{d} x+(4 x+6 y-7) \mathrm{d} y=0, y(0)=3$, is

$\alpha x+\beta y+3 \log _e|2 x+3 y-\gamma|=6$, then $\alpha+2 \beta+3 \gamma$ is equal to ____________.
Your input ____
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