INTRODUCTORY EXERCISES - Trigonometric Functions


(1) Determine whether each of the following statements are true or false.

(a) cos 0o = 0

(b) sin 30o = /2

(c) sin 45o = 1/2

(d) cos 45o = /2

(e) cos 60o = 1

( Click On SOLUTION To See The Answer )

(2) Find the values of the six trigonometric ratios of the following angle :

( SOLUTION )

(3) Find the reference angle for the given angle.

(a) -230o

(b) 750o

( SOLUTION )

(4) What is the sign of the expression sincsc ; in any quadrant, given that n (where n is an integer)

( HINT , SOLUTION )




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