Q:
# What is the integral of cos 2x?

**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 derived from the chain rule for differentiation.

For any given value, the cos(ax) = 1/2 x sin(ax) + C. For the function cos(2x), a = 2. Using substitution, the value of u can be set to 2x. The derivative of u can be set as du = 2 x dt. Substituting into the equation gives the proper integral function. The integral of a function is known as the antiderivative.

Learn more about Trigonometry-
Q:
## What is cos 30 degrees?

A: 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 len... Full Answer >Filed Under: -
Q:
## How do you find the cos inverse?

A: The basic trigonometric functions sine, cosine, and tangent give the ratio between two sides of a triangle with a given angle. The inverse trig functions f... Full Answer >Filed Under: -
Q:
## What is the cos of 90 degrees?

A: The cosine (cos) of 90 degrees is zero. This value is taken from the unit circle, a commonly used device in mathematics that assigns values to the trigonom... Full Answer >Filed Under: -
Q:
## How do you solve for the integral of sec(x)?

A: Solve the integral of sec(x) by using the integration technique known as substitution. The technique is derived from the chain rule used in differentiation... Full Answer >Filed Under: