The derivative of cos(2) is 0. The derivative of cos is -sin but, in this case, it does not matter once the chain rule and the constant rule are applied. It is also possible to simplify the expression first, which result... More »

www.reference.com Math Geometry Trigonometry

The derivative of cos(4x) is -4*sin(4x)while the general derivative form of cos(y) is -dy*sin(y). Since there is a variable contained in the bracket, the derivative of it must also be taken due to the chain rule. Since t... More »

The derivative of 3x is 3. Whenever a mathematical function is defined by a constant multiplied by x, the derivative of the function equals the constant. Thus, the derivative of 2x is 2 and the derivative of 4x is 4. More »

www.reference.com Math Calculus

The integral of sin (x * 2) is equal to -(1/2) * cos(2x) + C. The integral can be solved using the integration technique known as substitution, which is the reverse of the chain rule used in differentiation. More »

www.reference.com Math Geometry Trigonometry

To find the derivative of a sin(2x) function, you must be familiar with derivatives of trigonometric functions and the chain rule for finding derivatives. You need scratch paper and can use a graphing calculator to check... More »

The cosine of 30 degrees is 0.86. It is also expressed as the square root of three divided by two. The cosine of an angle is calculated by dividing the length of the side of a right triangle adjacent to the acute angle b... More »

The integral of cos(2x) is 1/2 x sin(2x) + C, where C is equal to a constant. The integral of the function cos(2x) can be determined by using the integration technique known as substitution. In calculus, substitution is ... More »