1
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $C_0, C_2, \ldots, C_n$ are the binomial coefficients in the expansion of $(1+x)^n$, then

$$ \left(C_0+C_1\right)-\left(C_2+C_3\right)+\left(C_4+C_5\right)-\left(C_6+C_7\right)+\ldots= $$

A

$2^{n / 2}\left(\cos \frac{n \pi}{4}+i \sin \frac{n \pi}{4}\right)$

B

$2^{n / 2}\left(\cos \frac{n \pi}{3}+i \sin \frac{n \pi}{3}\right)$

C

$2^{n / 2}\left(\cos \frac{n \pi}{3}+i \sin \frac{n \pi}{3}\right)$

D

$2^{n / 2}\left(\cos \frac{n \pi}{4}+\sin \frac{n \pi}{4}\right)$

2
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ 1+\frac{4}{15}+\frac{4 \cdot 10}{15 \cdot 30}+\frac{4 \cdot 10 \cdot 16}{15 \cdot 30 \cdot 45}+\ldots . .+\infty= $$

A

$\left(\frac{3}{5}\right)^{2 / 3}$

B

$\left(\frac{5}{3}\right)^{2 / 3}$

C

$\left(\frac{3}{5}\right)^{3 / 2}$

D

$\left(\frac{5}{3}\right)^{3 / 2}$

3
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $\frac{3 x+1}{(x-1)\left(x^2+2\right)}=\frac{A}{x-1}+\frac{B x+C}{x^2+2}$, then $5(A-B)=$

A

$A+C$

B

8 C

C

$C+8$

D

$\frac{C}{8}$

4
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$\operatorname{cosec} 48^{\circ}+\operatorname{cosec} 96^{\circ}+\operatorname{cosec} 192^{\circ}+\operatorname{cosec} 384^{\circ}=$

A

$4 \sqrt{3}$

B

$-4 \sqrt{3}$

C

0

D

1