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Mathematics 2012 JAMB Past questions - Question 38

MATHEMATICS

JAMB 2012 - Question 38

Mathematics 2012 JAMB Past Questions - Question 38: Find dy/dx if y=cos x

Find dy/dx if y=cos x

A: sinx

B: -sinx

C: tan x

D: -tan x

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Correct Answer

Explanation

y = cosxdy/dx = -sinx