Question

using sin A+B =sinA.cosB+cos A. sin B, find sin 75°​

Answer 1

Step-by-step explanation:

Let A= 45 and B = 30

Now substituting the values

= 1/root 2 * root3/2 + 1/root2 * 1/2

= root3/2root2 + 1/2 root 2

root (3 +1)/ 2 root 2

Hope it helps you

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