Maths - Online Test
Q1. cos2θ cos2ϕ + sin2 (θ - ϕ) - sin2 (θ + ϕ) is equal to
Answer : Option B
Explaination / Solution:
Q2. 
is
is
Answer : Option C
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Q3. There are 10 points in a plane and 4 of them are collinear. The number of straight lines joining any two points is
Answer : Option B
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Q4. A bag contains 5 white and 3 black balls. Five balls are drawn successively without replacement. The probability that they are alternately of different colours is
Answer : Option C
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Q5.
If Sn denotes the sum of n terms of an AP whose common difference is d, the value of Sn - 2Sn-1 + Sn-2 is
Answer : Option A
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No Explaination.
Q6. The equation of the line with slope 2 and the length of the perpendicular from the origin equal to √5 is
Answer : Option C
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Q7. If A = 
and if xy = 1, then det ( AAT ) is equal to
and if xy = 1, then det ( AAT ) is equal to
Answer : Option D
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Q8. If 
,
are the position vectors A and B, then which one of the following points whose position vector
lies on AB, is
, are the position vectors A and B, then which one of the following points whose position vector
lies on AB, is
Answer : Option C
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Q9.
If two sets A and B have 17 elements in common, then the number of elements common to the set A x B and B x A is
Answer : Option B
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Q10. 
Answer : Option C
Explaination / Solution:
