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Answer: (b) e2-5x = 8 ln e2-5x = ln 8 2 – 5x = ln 8 x = (2 – ln 8) -0.0159. 191. Solve the equation ex = 10 for x. (a) x = (b) x = 2ln 2 (c) x = ln 5 (d) x = ln 10 (e) x = 2ln 5. Answer: (d) ex = 10 x = ln 10. 192. Solve the equation e1-4x = 2 for x. (a) x = (ln 2 – 1) (b) x = 2ln 2 – 1 (c) x = ln ................
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