Maths - Online Test
Q1. Which one is the contrapositive of the statement
( p ∨ q ) → r ?
Answer : Option A
Explaination / Solution:
Q2. Consider the vectors 
, 
, 
, 
such that 
. Let P1 and P2 be the planes determined
by the pairs of vectors , and , respectively. Then the angle
between P1 and P2 is
, , , such that . Let P1 and P2 be the planes determined
by the pairs of vectors , and , respectively. Then the angle
between P1 and P2 is
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. The number given by the Mean value theorem for
the function 1/x , x ∈[1,
9] is
Answer : Option C
Explaination / Solution:
Q4. if A= 
, and AT = A−1 , then the value of x is
, and AT = A−1 , then the value of x is
Answer : Option A
Explaination / Solution:
Q5. Linear approximation for g ( x) = cos x at x = π/2 is
Answer : Option B
Explaination / Solution:
Q6. z1 , z3 , and z3 are complex numbers
such that z1 + z2 + z3 = 0 and | z1 | =| z2 | =| z3 | = 1 then z 2 + z 2 + z 2 is
Answer : Option D
Explaination / Solution:
Q7. The value of π∫0 sin4x dx is
Answer : Option B
Explaination / Solution:
Q8. The solution of the differential equation 
is
is
Answer : Option A
Explaination / Solution:
Q9. 
Then x
is a root of the equation
Then x
is a root of the equation
Answer : Option B
Explaination / Solution:
Q10.
The random variable x has
the probability density function
and E ( x )
= 7/12, then a and b are respectively
Answer : Option A
Explaination / Solution:
