Flat 50% off
BUY NOWEnds in

If the angle is measured in c.w.direction then why are the measurement of the angle is in negative and start with the IV quadrant ? Why are the rules of measurement of angles of a.c.w direction is not applicable for this ? Sir please explain by giving some examples. Sir please look at the figure given below and check the formula for tan(\(-\theta \)) and cot(\(-\theta \)) is right or not??
Updated Thu, 16 May 2019 10:04 am

Ans pls!
A solid cone of height 25 cm and base diameter 25 cm floats in water with its vertex downwards such that 20 cm of its axis is immersed. The additional weight that must be placed at the centre of the base such that the cone now is completely immersed in water is-
(a) 1 kg
(b) 2 kg
(c) 3 kg
(d) 4 kg
Updated Thu, 20 Dec 2018 10:02 am