A. tan-(3/4)
B. tan-(3/5)
C. tan-(4/3)
D. tan-(5/3)
If θ is the angle between the curves xy=2, x2 +4y=0 then tan θ=
For the curve y2=(x+a)3, the square of the sub tangent is……. Subnormal
If f(x)=x-k/x has a maximum value at x=-2. Then k=
The length of the sub tangent to the curve x2y2=a4 at the point (-a, a) is
The two curves y=x-3, y=e3(1-x) at (1, 1)
The distance between the origin and the normal to the curve y=e2x+x2 at x=0 is
The angle between the curves x2=4y, x2+y2=5 at (-2, 1) is
The equation of the tangent to the curve x2+2y=8 and which is perpendicular to x-2y+1=0 is
The condition for f(x)= x3+px2+qx+r(x R) to have no extreme value, is
When a circular oil drop expands on water, its area increases at the uniform rate of 40sq. cm per minute. The rate of increase in the radius when the radius 5 cm is