Using the above graph if 10o lt x lt 60o what i... - WAEC Mathematics 1989 Question
Using the above graph, if 10o < x < 60o, what is the value of x for which sin x = cos x?
A
0o
B
20o
C
30o
D
45o
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Correct Option: D
From the graph; when sin x = cos x
x = 45 0
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