CBSE 11TH MATHEMATICS - Online Test

Q1.

In the expansion of, the  term is 24 times the  term . The value of x is


Answer : Option C
Explaination / Solution:



Q2. P ( A ) = P ( B ) ⇒⇒
Answer : Option C
Explaination / Solution:



Q3. If y =  then 
Answer : Option A
Explaination / Solution:



Q4. The solution set for : 
Answer : Option B
Explaination / Solution:



Q5. The next term of the sequence 1, 1, 2, 4, 7, 13,…. Is
Answer : Option C
Explaination / Solution:



Q6. Quartile deviation is nearly equal to
Answer : Option A
Explaination / Solution:

Quartile deviation  is approximately 2/3 times the standard deviation.

Q7. The acute angle between the lines y = 2x and y = - 2x is
Answer : Option C
Explaination / Solution:

The angle between two straight lines is given by 

Here m1 = 2 and m2 = -2

Sustituting the values we get,

 = 

= 4/5 <600


Q8. The inverse of the proposition (p∧∼q)→r is
Answer : Option A
Explaination / Solution:

         

   Since 


Q9. The radius of the circle passing through the foci of the ellipse  =1 and having its centre at (0, 3) is
Answer : Option B
Explaination / Solution:

=1

comparing with the standard equation we get a=4 and b=3 we get c = =

so focus is   and the given centre is (0,3).

using distance formulae. we get radius =4 units


Q10.

The set of values of x for which  is


Answer : Option B
Explaination / Solution: