MODERATE EXERCISES - Trigonometric Functions

(1) Find the value of the trigonometric functions.

(a) sin 120o

(b) cos 135o

(c) sin 240o

(d) cos 330o

(e) sin 150o

( Click On HINT For Some Help , Click On SOLUTION To See The Answer )

(2) Evaluate and simplify.

 (a) 2cos 45o + cos 180o

 (b)         1
     sin 30o + cos 60o


(3) Find the values of the following, using the given diagram.

(a) sin

(b) cos

(c) cot

(d) sec


Introductory Exercises Moderate Exercises