10 years ago father was 12 times as old as his son and 10 years later. He will be twice as old as his son . Find the present age
if any ticket and hotel purchased from out of country and they will be charged amount in own currency (in indian currency : INR 10000) and this ticket sold in india 12000 then how to pay gst. and how to earn profit of this transaction.
An object at the end of a vertical spring is stretched 4 cm beyond its rest position and released at time t = 0. Its position at time t is s = 2 sin t — 4 cos t. Find its velocity, acceleration and jerk at time t = 4 sec