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Express each of the folloiwng as a produ...

Express each of the folloiwng as a product
(i) `sin 75^(@)-sin 35^(@)` (ii) `cos 65^(@)+cos 15^(@)` (iii) `sin 50^(@)+sin 40^(@)` (iv) `cos 35^(@)-cos 75^(@)`.

Text Solution

Verified by Experts

The correct Answer is:
`2 sin 55^(@) sin 20^(@)`
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