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german
2 years ago
7

Simplify the expression square root of 15•square17

Mathematics
1 answer:
alexira [117]2 years ago
5 0

Step-by-step explanation:

\sqrt{15}\cdot\sqrt{17}=\sqrt{(15)(17)}=\sqrt{255}\\\\\text{Used}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}

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Study the geometric sequence {-4, -84, -1764, -37044, ...}.
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Answer:

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Step-by-step explanation:

a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21

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geometric sequence formula:   a_n=a_1r^{n-1}

a_1=-4\quad and \ \ r=21

a_n=(-4)21^{n-1}

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