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Practice Test - Mathematics 20
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Question 1
If the coefficients of rth, (r+ 1)th and (r + 2)th terms in the binomial expansion of (1 + y)m are in A.P., then m and r satisfy the equation
Question 2
Let P be the point (1, 0) and Q a point on the locus y2 = 8x. The locus of mid-point of PQ is
Question 3
The equation of the tangent to the curve, that is parallel to the x-axis is
Question 4
If ω (≠ 1) is a cube root of unity, and (1 + ω)7 = A + Bω. Then (A, B) equals:
Question 5
Area of the greatest rectangle that can be inscribed in the ellipse is
Question 6
If I1 =, I3 = dx then
Question 7
If a2 + b2 + c2 = -2 and f(x) = then f(x) is a polynomial of degree
Question 8
The shortest distance between the line y – x = 1 and the curve x = y2 is
Question 9
A bird is sitting on the top of a vertical pole which is 20 m in height and its elevation from a point O on the ground is 45°. It flies off horizontally straight away from the point O. After one second, the elevation of the bird from point O is reduced to 30°. Calculate the speed (in m/s) of the bird.
Question 10
If, then the value of (A, B) is
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Feb 21JEE & BITSAT