Maths - Online Test

Q1. In a triangle ABC, sin2A + sin2B + sin2C = 2, then the triangle is
Answer : Option C
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Q2.  is
Answer : Option D
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Q3. Number of sides of a polygon having 44 diagonals is
Answer : Option C
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Q4. An urn contains 5 red and 5 black balls. A ball is drawn at random, its colour is noted and is returned to the urn. Moreover, 2 additional balls of the colour drawn are put in the urn and then a ball is drawn at random. The probability that the second ball drawn is red will be
Answer : Option B
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Q5. The nth term of the sequence 1/2 , 3/4 , 7/8 , 15/16 ,……….is
Answer : Option B
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Q6. The line (p + 2q)x + (p - 3q)y = p - q for different values of p and q passes through the point
Answer : Option D
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Q7. If the square of the matrix  is the unit matrix of order 2, then α, β and γ should satisfy the relation. 
Answer : Option B
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Q8. Two vertices of a triangle have position vectors 3iˆ + 4 ˆj − 4kˆ and 2iˆ + 3 ˆj + 4kˆ. If the position vector of the centroid is iˆ + 2 ˆj + 3kˆ, then the position vector of the third vertex is
Answer : Option A
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Q9. The range of the function 1 / 1-2 sin x is
Answer : Option D
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Q10.  is 
Answer : Option A
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No Explaination.