1
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The $n$th term of the series $1+(3+5+7)+(9+11+13+15+17)+\ldots$ is
A
$(2 n+1)\left[n^2-(n-1)^2\right]$
B
$(2 n-1)\left[(n-1)^2-n^2\right]$
C
$(2 n+1)\left[(n-1)^2-n^2\right]$
D
$(2 n-1)\left[(n-1)^2+n^2\right]$
2
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The number of ways of selecting- 3 numbers that are in GP from the set $\{1,2,3$, $100\}$ is
A
18
B
52
C
14
D
53
3
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ 2+3+5+6+8+9+\ldots .2 n \text { terms }= $$

A
$3 n^2+2 n$
B
$4 n^2+2 n$
C
$4 n^2$
D
$5 n^2+2 n$
4
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $\alpha, \beta$ are the roots of the equation $x^2-6 x-2=0$, $\alpha>\beta$ and $a_n=\alpha^n-\beta^n, n \geq 1$, then the value of $\frac{a_{10}-2 a_8}{2 a_9}$ is equal to
A
6
B
4
C
3
D
2
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