Use an appropriate substitution and then a trigonometric substitution to evaluate the integral. 100-x dx Vx VT00 -x dx-]

Q: x*dx (x² + 4)2

A:

Q: Use Table shown to rewrite as the difference of two integrals.

A: Given integral, ∫162x3-4xdx          ...(1)

Q: (y5 – x²e») dx dy -11-3

A:

Q: | cos (5x) cos (3x)dx

A: Given integral: ∫cos5xcos3xdx We know, cosαcosβ=12cosα+β+cosα-β. Also, ∫cosxdx=sinx+c.

Q: evaluate using trigonometric substitution. Refer to the table of trigonometric integrals as…

A: Given integral is We will use the following substitution as follows.

Q: 1 | (n²z6 – 28)Zdz

A:

Riemann Sum

Riemann Sums is a special type of approximation of the area under a curve by dividing it into multiple simple shapes like rectangles or trapezoids and is used in integrals when finite sums are involved. Figuring out the area of a curve is complex hence this method makes it simple. Usually, we take the help of different integration methods for this purpose. This is one of the major parts of integral calculus. 

Riemann Integral

Bernhard Riemann's integral was the first systematic description of the integral of a function on an interval in the branch of mathematics known as real analysis.