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QUESTION
Q
If (1 + Sin A)(1 + Sin B)(1 + Sin C) = (1 − Sin A)(1 − Sin B)(1 − Sin C), then each side is...

Solution

(1 + Sin A)(1 + Sin B)(1 + Sin C) = (1 − Sin A)(1 − Sin B)(1 − Sin C) Any values of A,B,C would satisfy the equation. So to simplify the problem let the values of A,B,C be =...

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Keynote

Sin 0° = 0 Cos 0° = 1 Solved using substitution method

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