Let be the roots of the equation and be the roots of the equation ; . If are in G.P., then equals :
- A
16
- B
32
- C
34
- D
38
Show answer
Correct option: C
25 questions Β· 25 with the official NTA answer
Let be the roots of the equation and be the roots of the equation ; . If are in G.P., then equals :
16
32
34
38
Correct option: C
Let be the distinct solutions of the equation . Then is equal to :
18
22
29
34
Correct option: D
If is defined by
and , then is equal to :
3
4
5
6
Correct option: A
Let be a matrix such that
then equals :
4
5
7
11
Correct option: B
If the sum of the first 10 terms of the series is , , then is equal to :
256
264
276
284
Correct option: C
Let be 39 arithmetic means between the numbers 59 and 159. Then the mean of and is equal to :
129
136
131.50
134
Correct option: D
The coefficient of in the expansion of , , is :
3240
3360
3480
3600
Correct option: B
The probabilities that players A and B of a team are selected for the captaincy for a tournament are 0.6 and 0.4, respectively. If A is selected the captain, the probability that the team wins the tournament is 0.8 and if B is selected the captain, the probability that the team wins the tournament is 0.7. Then the probability, that the team wins the tournament, is :
0.74
0.76
0.72
0.78
Correct option: B
A box contains 5 blue, 6 yellow and 4 red balls. The number of ways, of drawing 8 balls containing at least two balls of each colour, is :
4100
4140
4230
4290
Correct option: A
A variable takes values with frequencies , respectively. If the mean of this data is 60, then its median is :
56
42
72
90
Correct option: A
Let the point be the vertex of the parabola . If a line passing through the point intersects the circle at the points and , then the maximum value of is :
10
20
25
5
Correct option: B
Let the directrix of the parabola , cut -axis at the point . Let , , be a point on such that the slope of is . If is a focal chord of , then six times the area of is :
80
160
174
192
Correct option: B
Let the eccentricity of a hyperbola satisfy the equation . If the foci of the hyperbola are and , then the length of its latus rectum is :
Correct option: C
Let a triangle be such that and lie on the line and are at a distance of 6 units from . If is the centroid of , then is equal to :
4
5
6
8
Correct option: C
If the distance of the point from the image of the point in the line is 4, then the sum of all possible values of is equal to :
11
9
6
4
Correct option: C
Let be the origin, and . If is the point on such that , and is the point such that , then is equal to :
Correct option: B
Let . Then the number of solutions of the equation , is :
0
2
3
1
Correct option: C
Let , , be in A.P. and be the minimum value of . Then the value of the integral is :
Correct option: B
Let be a differentiable function defined as . Then the value of is :
Correct option: A
Let and be twice differentiable functions satisfying for all , and . Then is equal to :
20
40
Correct option: B
Let and . Then the number of elements, in the relation is __________.
Answer: 18
From the point , two rays are sent making angles of with the line . These rays get reflected from the mirror . If the equations of the reflected rays are and , , then the value of is __________.
Answer: 7
If , then is equal to __________.
Answer: 19
Let be a function such that , . Let the maximum value of on be . If the area of the region bounded by the curves and , , is , then is equal to __________.
Answer: 16
Let be the solution of the differential equation
If , then equals __________.
Answer: 48