Math, asked by rosiemondal, 2 months ago

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Answers

Answered by usoni1977
1

Answer:

the answer is 165/7

Step-by-step explanation:

hope it helps you.

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Answered by tanishkashyap
1

Answer:

\frac{165}{7}

Step-by-step explanation:

5a +\frac{1}{7a}  = 5

Squaring both sides

(5a +\frac{1}{7a} )²=5²

(5a)² + 2 x 5a x\frac{1}{7a} +(\frac{1}{7a})² =25

25a² + \frac{10}{7} +\frac{1}{49a^{2} } =25

25a² + \frac{1}{49a^{2} } = 25 - \frac{10}{7}

25a² + \frac{1}{49a^{2} } = \frac{175-10}{7}

25a² + \frac{1}{49a^{2} } = \frac{165}{7}

Thus, 25a² + \frac{1}{49a^{2} } = \frac{165}{7}

Hope it helps

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