In how many ways, words can be made from the letters of the word BHARAT in which B and H are never together ?
360
300
240
120
iF a,b and c are in HP, then for any n N, which one of the following is true ?
an + cn < 2bn
an + cn > 2bn
an + cn = 2bn
None of the above
B.
an + cn > 2bn
The radius of a cylinder is increasing at the rate of 2 m/s and its height is decreasing at the rate of 3 m/s. When the radius is 3 m and height is 5 m, then the volume of the cylinder would change at the rate of
By Newton-Raphson method, the positive root of the equation x4 - x - 10 = 0 is
1.871
1.868
1.856
None of these
If 2a + 3b + 6c = 0, then the equation ax2 + bx + c = 0 has atleast one real root in
(0, 1)
None of the above
If f(x) = , then f(x) has
local minimum at x = 1
local maximum at x = 1
Both local maximum and local minimum at x = 1
None of the above