19 (a) Solve In(2r)-3 In(z) 0 for r. (b) Use the following table to find the value of z from 7a-2- 11. n Inn n Inn 1 0.00 6 1.79 2 0.69 7 1.95 3 1.10 8 2.08 4 1.39 9 2.20 5 1.61 10 2.30

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