Integral Calculus Answers

How to integrate integral cube root tanx.

A body moves in a straight line with acceleration of magnitude a m/s2 given by a = 8 – t at time t seconds. If initially the speed is zero, find
(a) the distance travelled in the first three seconds
(b) the maximum distance from the initial point.

Use polar coordinates to find the volume of the solid that is above the xy-plane, inside the cylinder x[sup]2[/sup]+ y[sup]2[/sup]-ay = 0 and inside the ellipsoid x[sup]2[/sup]/a[sup]2[/sup] + y[sup]2[/sup]/a[sup]2[/sup] + z[sup]2[/sup]/c[sup]2[/sup] = 1.

how can we make numbers from 1 to 15 with three 2? (you can make this numbers only with+,-,*,/,√,⌊…⌋,⌈…⌉,...^...) e. g. :6=2+2+2 3=(2+2)-⌊2√⌋ please answer me only if you can make all of the numbers