Question

CHALLENGERS

Find the value of

(i) sin 210
(ii) cos 315º
(iii) tan 480°
(iv) sec 510

Find the value of
(i) sin(-210°)
(iv) cot(-60)
(ii) cos(-30°)
(v) sec(-1359)
(iii) tan (-135°)
(vi) cosec(-120°)

Find the value of
(1) sin(-π/6)
(ii) cos(-3π/4)
(3)tan(5π/3)

evaluate cos 225° - sin 225º + tan 495°-cot 495°.

find the value of sin 330º.cos 120° + cos 210°.sin 300°.
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Answer 1

Answer:

CHALLENGERS

Find the value of

(i) sin 210

(ii) cos 315º

(iii) tan 480°

(iv) sec 510

Find the value of

(i) sin(-210°)

(iv) cot(-60)

(ii) cos(-30°)

(v) sec(-1359)

(iii) tan (-135°)

(vi) cosec(-120°)

Find the value of

(1) sin(-π/6)

(ii) cos(-3π/4)

(3)tan(5π/3)

evaluate cos 225° - sin 225º + tan 495°-cot 495°.

find the value of sin 330º.cos 120° + cos 210°.sin 300°.