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Without using trigonometric tables , eva...

Without using trigonometric tables , evaluate :
(i) `(sin40^(@))/(cos50^(@))+(3tan50^(@))/(cot40^(@))`
(ii) `(sec37^(@))/("cosec "53^(@))-(tan20^(@))/(cot70^(@))`
(iii) `(cos74^(@))/(sin16^(@))+(sin12^(@))/(cos78^(@))-sin18^(@)sec72^(@)`
(iv) `sin35^(@)sec55^(@)+(4sec32^(@))/("cosec "58^(@))`

Text Solution

Verified by Experts

The correct Answer is:
(i)4 (ii) 2 (iii) 1 (iv)5
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