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Question 2(i, ii, iii, iv and v) Exercise 8.3
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Rewrite the sum or difference as a product of two function: $\sin 70^{\circ} + \sin 30^{\circ}$ ** Solution... Rewrite the sum or difference as a product of two function: $\sin 76^{\circ} - \sin 14^{\circ}$ ** Solution... Rewrite the sum or difference as a product of two function: $\cos 58^{\circ} + \cos 12^{\circ}$ ** Solution... Rewrite the sum or difference as a product of two function: $\cos \frac{p-q}{2} + \cos \frac{p+q}{2}$ ** So