Asked by  | 23rd Jun, 2008, 10:10: PM

Expert Answer:

We cannot entertain multiple question of this type, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.

Answer to first query:

Convert all trigonometric ratios to sin and cos

Answered by  | 24th Jun, 2008, 02:01: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.