f4|= 2e "(3casot-3sindt) 2t fU) = 2e" sinatsin 3t

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A: Solution:-

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Q: 1. P ((Q · R) v ) 2. (Q R) ~P 3. T ~S 7:. P ɔ ~T

A: This a question of propositional logic.

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A: This is the problem of counting and logical reasoning.

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A: We prove that there are infinitely many primes of the form 4n+3 by method of contradiction.

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Q: Determine whether the seriesis convegent or divergent. If it is Convergent find its Sum, COS If an=l...

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Q: Use the Comparison Test to determine if the series 5n – cos 2n n + n2 + 1 T=1 converges or diverges.

A: Comparison  Test :    If ∑n=1∞ an and ∑n=1∞ bn be the two positive term series and an≤ K.bn for all ...

Q: 3,-18,108,-648,

A:

Q: Cauchy-Euler equations have unique solutions at x=0, specifically the function y = 0.

A: Solution:-