Mathematics - Online Test

Q1. Skew lines are
Answer : Option D
Explaination / Solution:

Skew lines are those lines which lie in different planes and never meet

Q2. If for a matrix A, where I is the identity matrix, then A equals
Answer : Option D
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Q3. General solution of is
Answer : Option C
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Q4.  is
Answer : Option B
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Q5. The coefficient of second, third and fourth terms in the binomial expansion of  ( ‘n’, a + ve integer) are in A.P.., if n is equal to
Answer : Option B
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Q6. If n (A ) =3 and n ( B ) = 6 and A⊆ B , then n(A∪B)=?
Answer : Option B
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Q7.

The tangent to the parabola at the point  makes with the X – axis an angle of


Answer : Option D
Explaination / Solution:


Therefore , slope of tangent at ( 1 , ½ ) = 1. Hence , required angle is 
Q8.

The area bounded by the ellipse  and the straight line x + 3y = 3 is


Answer : Option A
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Q9. The solution set for : 3x − 7 >x + 3.
Answer : Option D
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Q10.  is equal to
Answer : Option B
Explaination / Solution: