Test for convergence the series 3.6.9 ... 3n ( 1 ) Σ n = 1 x" (x > 0), 7.10.13 ... (3n + 4) I1 = 2.4.6 ... (2n + 2) 3.5.7 .. (2n + 3) (ii) E (x > 0).

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Q: 18.12. Let the function f be entire and f(z) → o as z 0o. Show that f must have at least one zero.

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Q: Use the cofactor expansion to compute the following determinant: 10 -9 3 det -5 6 -7= 0 -7 1 -9

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