A man 40m from the foot of a tower observes the angle of elevation of the tower to be 30o, Determine the height of the tower

Find the value of x for which the function f(x) = 2x3 - x2 - 4x + 4 has a maximum value

Integrate x2−√xx x 2 − x x with respect to x

If the lines 2y - kx + 2 = 0 and y + x - k2 k 2 = 0 intersect at (1, 2), find the value of k

Determine the value of ∫π20 ∫ 0 π 2 (-2 cosx)dx

If y = (1 + x)2, find dydx

The volume of a hemispherical bowl is 71823 2 3 cm3. Find its radius.

If y = x cosx, find dydx d y d x .

Find the size of each exterior angle of a regular octagon.