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OpenStudy (anonymous):
Solve the equation sin (x° - 20°) = cos 42° for x, where 0 < x < 90. A. 62 B. 22 C. 68 D. 28
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OpenStudy (campbell_st):
well cos(42) = sin(90 - 42) or cos(42) = sin(48) snow you can equation sin(x -20) = sin(48) and solve
OpenStudy (anonymous):
thanks
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