There is an error of cm in the measurement of the diameter of a sphere. When radius is 10cm, the percentage error in the volume of the sphere is
one maximum value
one minimum value
no extreme value
one maximum and one minimum value
C.
no extreme value
In a quadrilateral ABCD, the point P divides DC in the ratio 1 : 2 and Q is the mid point of AC. If then k is equal
- 6
- 4
6
4
The angle between the lines whose direction cosines satisfy the equations l + m + n = 0, l2 + m2 - n2 = 0 is