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Q4. Find the range of values of x for which (a) 4(x - 2) ≤ 2x + 1 (b) (2x - 3)(x + 5) > 0 (c) both 4(x - 2) ≤ 2x + 1 and (2x - 3)(x + 5) > 0

Q4. Find the range of values of x for which (a) 4(x - 2) ≤ 2x + 1 (b) (2x - 3)(x + 5) > 0 (c) both 4(x - 2) ≤ 2x + 1 and (2x - 3)(x + 5) > 0

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Q3. Answer this question without a calculator, showing all your working and giving your answers in their simplest form. (i) Solve the equation (ii) (a) Express in the form k√√2, where k is an integer. (b) Hence, or otherwise, solve Q4. Find the range of values of x for which (a) 4(x - 2) ≤ 2x + 1 (b) (2x - 3)(x + 5) > 0 42x + 1 = 84x 3√18-√32 3√18-√√32= √n (c) both 4(x - 2) ≤ 2x + 1 and (2x - 3)(x + 5) > 0
Transcribed Image Text:Q3. Answer this question without a calculator, showing all your working and giving your answers in their simplest form. (i) Solve the equation (ii) (a) Express in the form k√√2, where k is an integer. (b) Hence, or otherwise, solve Q4. Find the range of values of x for which (a) 4(x - 2) ≤ 2x + 1 (b) (2x - 3)(x + 5) > 0 42x + 1 = 84x 3√18-√32 3√18-√√32= √n (c) both 4(x - 2) ≤ 2x + 1 and (2x - 3)(x + 5) > 0
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