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x2 + y2 + 2(2K+3)x - 2Ky +(2K+3)2 + K2 - r2 = 0 represents the family of circles with centres on the line
If the equation [(k(x+1)2/3)]+[(y+2)2/4]=1 represents a circle, then k=
Let (1 + x)n =
C0 + C1x + C2x2 + ... + Cnxn and (C1/C0) + (2 C2/C1) + (3 C3/C2) + .... + ((n Cn)/(Cn - 1)) = (1/k)n(n + 1), then the value of k is
Solution of the differential equation tan y sec2 x dx + tan x sec2 y dy = 0 is
The latus rectum of the conic 3x2 + 4y2 - 6x + 8y - 5 = 0 is
If the length of the major axis of an ellipse is three times the length of its minor axis, then it's eccentricity is
The maximum area of the rectangle that can be inscribed in a circle of radius r is
The equation of the normal to the curve x2 = 4y at (1, 2) is
The length of the latus rectum of the parabola x2-4x-8y+12=0 is
3 videos|10 docs|54 tests
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3 videos|10 docs|54 tests
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