Find the value of X if cos x frac 5 8 for 0 o l... - WAEC Mathematics 1998 Question
Find the value of X if \(cos x = \frac{5}{8}for 0^o\le X\le 180^o\)
A
141.3o
B
128.7o
C
51.3o
D
48.7o
correct option: c
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