Derivative of 1/cos(3x)

Derivative of 1/cos(3x). Simple step by step solution, to learn. Simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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Derivative of 1/cos(3x): 


(1/cos(3*x))'

((1)'*cos(3*x)-(1*(cos(3*x))'))/((cos(3*x))^2)

(0*cos(3*x)-(1*(cos(3*x))'))/((cos(3*x))^2)

(0*cos(3*x)-(1*-sin(3*x)*(3*x)'))/((cos(3*x))^2)

(0*cos(3*x)-(1*-sin(3*x)*((3)'*x+3*(x)')))/((cos(3*x))^2)

(0*cos(3*x)-(1*-sin(3*x)*(0*x+3*(x)')))/((cos(3*x))^2)

(0*cos(3*x)-(1*-sin(3*x)*(0*x+3*1)))/((cos(3*x))^2)

(0*cos(3*x)-(1*3*(-sin(3*x))))/((cos(3*x))^2)

(0*cos(3*x)-(1*-3*sin(3*x)))/((cos(3*x))^2)

(3*sin(3*x))/((cos(3*x))^2)

The calculation above is a derivative of the function f (x)

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