CBSE 11TH MATHEMATICS - Online Test
Q1.
The value of the expression tan tan tan … tan is equal to
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. is divisible by
Answer : Option D
Explaination / Solution:
when n = 1 , we have 50, which is divisible by 25.
Q3. If E is an event, then 
is equal to
is equal to
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. The number of spheres of a given radius which touch the coordinate planes is
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. If P(n,r) = C(n,r) then
Answer : Option A
Explaination / Solution:
Q6. The complex numbers z = x + iy ; x , y R which satisfy the equation lies on
Answer : Option D
Explaination / Solution:
Let z=x+iy
Q7. The index of the power of x that occurs in the 5th term in the expansion of is
Answer : Option D
Explaination / Solution:
Q8. If A , B and C are non – empty sets , then ( A – B ) ∪( B – A ) equals :
Answer : Option A
Explaination / Solution:
Q10. Graph of the system of inequations x ≥ 0 , y ≤ 0 is
Answer : Option C
Explaination / Solution:
The solution region of will be the half of XY –plane which lies on the right of y – axis , including the points on y – axis [ First and Fourth quadrants ]
The solution region of will be the half of XY –plane which lies under x – axis , including the points on x – axis [ Third and Fourth quadrants ]
Hence the solution region of will be the the intersection of the above two regions ,which is the fourth quadrant.
