x, y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 2 – McqOptions

MCQOPTIONS

1.	x, y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 20°), the value of tan(x + y) is:
A.	√3
B.	1/√3
C.	1
D.	2 + √2
Answer» D. 2 + √2

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