please answer fast of 18 question.
please give me the answer fast
(1)^-3 = -1is this possible if yes why?
sumof first n terms of G.P.if common difference is equal to 1
The roadway bridge over a canal is in the form of an arc of a circle of radius 20 m. What is the minimum speed with which a car can cross the bridge without leaving contact with the ground at the highest point (g = 9.8 m/s2) ...