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19 January, 20:14

Is it ever possible that sin (A+B) = ⁡ (A+B) = sin⁡ A+sin⁡ B?

If so, explain how. If not, explain why not.

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  1. 19 January, 21:23
    0
    It will always be the case when A and B are opposites

    Step-by-step explanation:

    sin (x) = - sin (-x) so ...

    sin (A - A) = (A - A) = sin (A) - sin (A) = 0

    That is, the given expression is true when B=-A.
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