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OpenStudy (sydney3545):
Which pair of angles has congruent values for the sin x° and the cos y°? A.)10°; 170° B.) 10°; 80° C.) 10°; 20° D.) 10°; 10°
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Nnesha (nnesha):
are you allowed to use calculator ?/
OpenStudy (sydney3545):
No :/
OpenStudy (sydney3545):
@Nnesha
Nnesha (nnesha):
the answer is B bec by using this cos(y) = sin(90 - y)
Nnesha (nnesha):
|dw:1406768896115:dw|
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