If sin A + cos A = p and sin3A + cos3A = q, then which one of the fol – McqOptions

MCQOPTIONS

1.	If sin A + cos A = p and sin3A + cos3A = q, then which one of the following is correct?
A.	p3 – 3p + q = 0
B.	q3 – 3p + 2p = 0
C.	p3 – 3p + 2q = 0
D.	p3 + 3p + 2q = 0
Answer» D. p3 + 3p + 2q = 0

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