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Given the identity tanX=sinXcosX and the relationship between the sine and cosine of complementary angles, what is tan (90°− A)? A) 1cosA B) 1sinA C) 1tanA D) sinAcosA
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Sep 25, 2017
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Given the identity tanX=sinXcosX and the relationship between the sine and cosine of complementary angles, what is tan (90°− A)?
A) 1cosA
B) 1sinA
C) 1tanA
D) sinAcosA
Mathematics
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Hazim Eid
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tan (90 - A) = sin (90 - A) / cos (90 - A) = (sin 90 cos A - sin A cos 90)/(cos 90 cos A + sin 90 sin A) = cos A / sin A = 1 / (sin A / cos A) = 1/tan A
Sean
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Sep 30, 2017
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