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OpenStudy (anonymous):
Which pair of angles has congruent values for the sin x° and the cos y°?
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OpenStudy (anonymous):
70°; 160° 2) 70°; 70 3) 70°; 120° 4) 70°; 20°
OpenStudy (midhun.madhu1987):
sin (90 - x ) = cos x cos (90 - x ) = sin x
OpenStudy (midhun.madhu1987):
can u guess now?
OpenStudy (anonymous):
number 4
OpenStudy (midhun.madhu1987):
yes... u r correct.. :)
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