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Calculus · DER

Derivatives of Trig Functions — sin, cos, tan

d/dx[sin x] = cos x; d/dx[cos x] = −sin x; d/dx[tan x] = sec²x.

CalculusCommon Core FUN-3.ADERVerified correct ✓

Worked examples

Find d/dx[cos(5x - 2)].
Answer: -5*sin(5*x - 2)
Find d/dx[cos(3x + 5)].
Answer: -3*sin(3*x + 5)

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