Question

इस प्रश्न को हल करे के answer बताएं।।।।।।।।।।।।।।​

Answer 1

Answer:

${y}^{2} + \frac{1}{ {y}^{2} } = 14$

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$( {y + \frac{1}{y} )}^{2} \\ \\ = {y}^{2} +( { \frac{1}{y} )}^{2} + 2 \\ \\ = \: 14 \: + \: \: 2 \: = \: 16$

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${(y + \frac{1}{y}) }^{2} = 16 \\ \\ = > y + \frac{1}{y} = \sqrt{16} \\ = > \: \: y \: \: + \: \frac{1}{y} = 4$

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