1
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the quadratic equations $3 x^2-7 x+2=0$ and $k x^2+7 x-3=0$ have a common root then the positive value of $k$ is

A

6

B

$11 / 4$

C

4

D

$7 / 2$

2
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the roots of $x^3+a x^2+b x+c=0$ are in arithmetic progression with common difference 1 , then

A

$9 c=a(b-2)$

B

$9 c=a(2-b)$

C

$9 c-a^2(b-2)=0$

D

$9 c-a^2(2-b)=0$

3
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $\alpha, \beta, \gamma$ are the roots of the equation $x^3+3 x^2-x-3=0$, then $\left(1+\alpha^2\right)\left(1+\beta^2\right)\left(1+\gamma^2\right)=$

A

16

B

24

C

36

D

40

4
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The number of integers $x, y, z, w$ satisfying $x+y+z+w=25$ and $x, y, z \geq-1, w \geq 1$, is

A

${ }^{28} \mathrm{C}_3$

B

${ }^{30} \mathrm{C}_3$

C

${ }^{29} \mathrm{C}_3$

D

${ }^{31} C_3$

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