Solution of IDZ Ryabushko 9.1 - Variant 3

Section: Chapter 9. Definite Integral
Topic: Definite Integral: calculation
Description: Calculation of definite integrals with an accuracy of two decimal places using the Newton-Leibniz formula, change of variable and integration by parts. Includes integrals of rational, trigonometric, irrational functions, as well as improper integrals.

Tasks:
1. Calculate definite integrals with an accuracy of two decimal places (1–7)
2. Calculate improper integrals or prove their divergence

The ready solution includes:
• Complete solution of all 8 tasks of the variant
• Detailed explanations for each step
• All formulas and calculations
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