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If the line lx+my=1 is a tangent line to the circle x2+y2=a2, the locus of (l,m) is
The coefficients of three successive terms in the expansion of (1 + x)n are 165, 330 and 462 respectively, then the value of n will be
If x is positive, then the first negative terms in the expansion of 1 + x 27 5 is
If w is a cube root of unity, then the value of (1 + ω - ω)2 (1 - ω + ω2) is
The area bounded by the parabola y2=4ax and the straight line y=2ax is
If the normal at the point P(θ) to the ellipse ((x2/14)+(y2/5) = 1) intersects it again at the point Q(2θ), then cosθ is equal to
The parametric equations of the hyperbola x2/a2 - y2/b2 = 1 are
3 videos|10 docs|54 tests
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3 videos|10 docs|54 tests
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