Verify each of the following:
(i) sin 60° cos 30° − cos 60° sin 30° = sin 30°
(ii) cos 60° cos 30° + sin 60° sin 30° = cos 30°
(iii) 2 sin 30° cos 30° = sin 60°
(iv) 2 sin 45° cos 45° = sin 90°
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Q4
Find the value of 1+sin30∘cos30∘+cos30∘1+sin30∘.
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Q5
If cos x = cos 60o cos 30o + sin 60o sin 30o, then the value of x is