Question

If x = a sin A + b cos A and y = a sin A - b cos A, then x² + y² = ?
(a) a + b
(b) a³ + b³
(c) a² + b³
(d) a² + b²

Answer 1

Answer:

a + b is right answer thank me

Answer 2

Answer:

a) a + b

Step-by-step explanation:

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