Question Library
Browse our collection of questions across various subjects
Mathematics
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What should be the value of k for which the equation 3x² + 3y² + (k + 1)z² + x…
NDA Mathematics 2013
NDA 2013
Mathematics
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If a line makes 30° with the positive direction of x-axis, angle β with the positive direction of y-axis and…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the distance between the planes x – 2y + z – 1 = 0 and -3x + 6y…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the area of the triangle whose vertices are (0, 0, 0), (1, 2, 3) and (-3, -2, 1)?
NDA Mathematics 2013
NDA 2013
Mathematics
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If A = [1 2; 1 2] and B = [0 −1; 1 2], then what is B⁻¹A⁻¹ equal to…
NDA Mathematics 2012
NDA 2012
Mathematics
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What is the cosine of angle between the planes x + y + z + 1 = 0 and 2x…
NDA Mathematics 2012
NDA 2012
Mathematics
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If the straight line (x − x₀)/l = (y − y₀)/m = (z − z₀)/n is parallel to the plane…
NDA Mathematics 2013
NDA 2013
Mathematics
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If A and B are any two sets, then what is A ∩ (A ∪ B) equal to ?
NDA Mathematics 2012
NDA 2012
Mathematics
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What is the angle between the planes 2x − y − 2z + 1 = 0 and 3x − 4y…
NDA Mathematics 2013
NDA 2013
Mathematics
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If A and B are two non-empty sets having n elements in common, then what is the number of common…
NDA Mathematics 2012
NDA 2012
Mathematics
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What is the inclination of the line √3 x − y − 1 = 0 ?
NDA Mathematics 2013
NDA 2013
Mathematics
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If z = 2i, then which one of the following is correct ?
NDA Mathematics 2012
NDA 2012
Mathematics
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A straight line passes through the points (5, 0) and (0, 3). The length of the perpendicular from the point…
NDA Mathematics 2013
NDA 2013
Mathematics
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If A + iB = 4 + 2i / 1 − 2i where i = √−1, then what is the…
NDA Mathematics 2012
NDA 2012
Mathematics
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If f(xy) = f(x)f(y), then f(t) may be of the form :
NDA Mathematics 2012
NDA 2012
Mathematics
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What is the area of the triangle whose vertices are (3, 0), (0, 4) and (3, 4) ?
NDA Mathematics 2013
NDA 2013
Mathematics
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If 1/4, 1/x, 1/10 are in HP, then what is the value of x ?
NDA Mathematics 2012
NDA 2012
Mathematics
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The difference of focal distances of any point on a hyperbola is equal to
NDA Mathematics 2013
NDA 2013
Mathematics
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If α and β are the roots of the equation x² − α(1 + x) − r = 0, then…
NDA Mathematics 2012
NDA 2012