Maths - Online Test
Q1. If 
then the value of x
is
then the value of x
is
Answer : Option D
Explaination / Solution:
Q2. If in 6 trials, X is a binomial variable which follows the relation 9P(X=4)
= P(X=2), then the probability of success is
Answer : Option B
Explaination / Solution:
Q3. An ellipse has OB as
semi minor axes, F and F ′ its foci and the angle FBF ′ is
a right angle. Then the eccentricity of the ellipse is
Answer : Option A
Explaination / Solution:
Q4. Determine the truth value of each of the following
statements:
(a)
4 + 2 = 5 and 6 + 3 = 9
(b)
3+ 2 = 5 and 6 + 1 = 7
(b)
4 + 5 = 9 and 1+ 2 = 4
(d)
3+ 2 = 5 and 4 + 7 =11
Answer : Option A
Explaination / Solution:
a) F and T=F
b) T and T=T
c) T and F=F
d) T and T=T
Q5. Distance from the origin to the plane 3x - 6 y +
2z + 7 = 0 is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. The point of inflection of the curve y = (x −1)3 is
Answer : Option C
Explaination / Solution:
Q7.
Which of the following is/are correct?
(i) Adjoint of a
symmetric matrix is also a symmetric matrix.
(ii) Adjoint of a
diagonal matrix is also a diagonal matrix.
(iii) If A is a square
matrix of order n and λ is a scalar, then adj( λ A) = λn
adj( A) .
(iv) A(adjA) = (adjA)
A =| A | I
Answer : Option D
Explaination / Solution:
Q8. The principal argument of
the complex number 
is
is
Answer : Option D
Explaination / Solution:
Q9. The value of 
is
is
Answer : Option B
Explaination / Solution:
Q10. The number of arbitrary constants in the
particular solution of a differential equation of third order is
Answer : Option D
Explaination / Solution:
No Explaination.
