Given that cos a = -12/3 and a is an angle in Quadrant II and that sin Beta = 3/5 is an angle in Quadrant I. Determine
a) cos (a + Beta)
b) sin (Beta - a)
1
Expert's answer
2012-09-13T10:28:37-0400
Dear visitor The statement of your question is confusing: cosine's value can't be less than -1. Cosine is bounded function with values between -1 and 1. In Real Analysis.
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