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Find the value of (i) cos(-30^(@)) " "...

Find the value of
(i) `cos(-30^(@)) " " ` (ii) `sin 120^(@) " "` (iii) `sin135^(@) " " ` (iv)`cos 120^(@)" "`(v) `sin270^(@) " "` (vi) `cos270^(@)`

Text Solution

Verified by Experts

The correct Answer is:
(i)`(sqrt(3))/(2) " "` (ii)`(sqrt(3))/(2) " "` (iii) `(1)/(sqrt(2)) " "` (iv) `-(1)/(2) " "` (v) `-1 " "` (vi) 0
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