Question: Please help me to solve all this questions. 15. Determine whether the following series converge or diverge. Indicate the test you use. = 1+sin'k (a)

Please help me to solve all this questions.

Please help me to solve all this questions. 15. Determine whether the

15. Determine whether the following series converge or diverge. Indicate the test you use. = 1+sin'k (a) ) k ot 1 (b) Z n +2n =0 16. Determine whether the series ZJ:[%} ( %} ] converges or diverges. If it converges, find its sum. " 17. Determine whether the series Z convcrgcs conditionally, or converges n= [J-,j_ absolutely, or diverges and give reasons for your conclusions. n X 18. Find the interval of convergence for the power series > S n=0 j1 + 3 g' =1 19. Use substitution method and a known power series to find power series for Please express your answer in one sigma notation

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