A magic show has 10 people in the audience. For the next act, the magician needs 2 people from the audience. In how many ways can he invite the 2 people from the audience? Your answer

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A: Solution:-

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Q: unded

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A: Please see the attachment

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Q: 1 1 Let Hn = 1+ 2 1 +... + be the n-th Harmonic number. Prove that H2n <1+n for all nonnegative inte...

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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 ...

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