The derivative of the inverse of this function on x equals one over the square root of the quantity one minus x squared. This function is used to build the Fourier [for-ee-ay] transform of odd functions. The magnitude of a cross product is the product of the vectors' magnitudes times this function of the angle between them. The derivative of this function is the cosine function. Name this trigonometric function that gives the y-coordinate on the 
The derivative of the inverse of this function on x equals one over the square root of the quantity one minus x squared. This function is used to build the Fourier [for-ee-ay] transform of odd functions. The magnitude of a cross product is the product of the vectors' magnitudes times this function of the angle between them. The derivative of this function is the cosine function. Name this trigonometric function that gives the y-coordinate on the unit circle, and that gives the ratio of the opposite side to hypotenuse length in a right triangle.
The derivative of the inverse of this function on x equals one over the square root of the quantity one minus x squared.