π – tan – π = . 2sin π + cosec cos π π = . cot cosec 3tan π π π . 2sin 2cos 2sec π π π .
Find the value of: (i) sin ° (ii) tan ° Prove the following: . cos cos sin sin sin( π π π π . π tan tan π tan tan = . cos ( ) cos ( cot sin ( ) cos π + π π − .
π π cos cos ( π cot cot ( π . sin ( n + ) x sin ( n + ) x + cos ( n + ) x cos ( n + ) x = cos x . cos cos 2sin π π = − . sin x – sin x = sin x sin x .
cos x – cos x = sin x sin x . sin2 x + sin x + sin x = cos x sin x . cot x (sin x + sin x ) = cot x (sin x – sin x ) . cos cos sin sin sin cos = − .
sin sin cos cos tan . sin sin cos cos tan . sin sin cos cos tan . sin sin sin cos sin .
cos cos cos sin sin sin cot MATHEMATICS . cot x cot x – cot x cot x – cot x cot x = . 4tan ( tan tan tan tan . cos x = – 8sin x cos x .
cos x = cos x – 48cos x + cos x – . Trigonometric Equations Equations involving trigonometric functions of a variable are called trigonometric equations . In this Section, we shall find the solutions of