Solution:

In these Videos below:
• Integral Calculus: Integration – Sum and Difference.
• Integral Calculus: Integration – U – Substitution by Changing Variables Part 1.
• Integral Calculus: Integration – U – Substitution by Changing Variables Part 2.
• Integral Calculus: Integration – U – Substitution by Changing Variables Part 2
• Integral Calculus: Integration – U – Substitution by Changing Variables Part 3.
• Integral Calculus: Integration by Parts, Fomula and Example. Part 1.
• Integral Calculus: Integrating Natural Logarithm by Parts. Part 2.
• Integral Calculus: Finding the Constant Of Integration (C). Example 1.
• Integral Calculus: Finding the Constant Of Integration (C) Example 2.

In these Videos below:
• Integration by U-Substitution Part 1.
• Integration by U-Substitution Part 2.
• Integration by U-Substitution Part 3 .

In these Videos below:
• Geometric Sequence – Find First term “a” and common ratio “r“
• Find the First Term “a” of a Geometric Sequence.
• Finding the Value of “r” of a Geometric Sequence.
• Common Ratio “r“, “n^th” Number and Sum “s” of the “n^th” First term of a Geometric Sequence.