derivative of tan(4x+4)
Let's perform the differentiation: ddx(tan(4x + 4))
Apply the differentiation rule: ddx(tan(f)) = ddx(f)·1cos(f)2 with f = 4x + 4
ⓘ The derivative of tan(x) is 1/cos(x)^2: ddx(tan(4x + 4)) = ddx(4x + 4)·1cos(4x + 4)2
ddx(4x + 4)·1cos(4x + 4)2
ⓘ The derivative of a sum is the sum of the derivatives: ddx(4x + 4) = ddx(4x) + 0
ddx(4x) + 0cos(4x + 4)2
ⓘ A constant factor stays in front of the derivative, (k*u)' = k*u': ddx(4x) = 4
▶Derivative:   4cos(4x + 4)2