Question

The value of the expression sin x + sin y + sin z
where x, y, z are real numbers satisfying
x + y + z = 180° is
(1) Positive
(2) Zero
(3) -3
(4) Negative

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Answer 1

Answer:

x + y + z = 180 is positive because x, y, z is a real number and also x, y, z is a angle of a triangle where we put a sin formulas so it is positive

Step-by-step explanation:

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