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1) Connection with exponential functions increasing exponential function decreasing exponential function 2) Solution procedure 3) Examples of exponential inequalities in basic form: Example 1: Solve the inequality for x ∈ ℝ: 3^(x + 1) ≤ 9 Example 2: Solve the inequality for x ∈ ℝ: (1/3)^x greater than 3^(-3) connection with the rotation of the inequality sign when multiplying by a negative number Example 3: Solve the inequality for x ∈ ℝ: 1/27 ≥ (1/3)^(1 - 3x) 4) Summary