Maths - Online Test
Q1. The function sin4 x + cos4 x is
increasing in the interval
Answer : Option C
Explaination / Solution:
Q2. If AT A−1 is symmetric, then A2
=
Answer : Option B
Explaination / Solution:
Q3. If f (x)
= x / x+1 , then its differential is
given by
Answer : Option B
Explaination / Solution:
Q4. If | z1 |
= 1, | z2 | = 2, | z3 | = 3 and | 9z1 z2
+ 4z1 z3 + z2 z3 | = 12 , then the value of | z1 + z2 + z3 | is
Answer : Option B
Explaination / Solution:
Q5. If 
= 90 then n is
= 90 then n is
Answer : Option D
Explaination / Solution:
Q6. The degree of the differential equation 
is
is
Answer : Option C
Explaination / Solution:
Q7. If the function f (x)
= sin−1 (x2 − 3) , then x belongs to
Answer : Option C
Explaination / Solution:
Q8. If P(X = 0) = 1 − P(X = 1). If E(X)
= 3Var(X), then P(X = 0) is
Answer : Option D
Explaination / Solution:
Q9. If the normals of the
parabola y2 = 4x drawn at the end points of its latus
rectum are tangents to the circle (x − 3)2 + ( y + 2)2
= r 2 , then the value of r 2 is
Answer : Option A
Explaination / Solution:
Q10. Which one is the inverse of the statement ( p ∨ q ) → ( p ∧q) ?
Answer : Option D
Explaination / Solution:
