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यदि $5 a + \frac{1}{3 a}$ = 5 हो, तो $9 a^{2} + \frac{1}{25 a^{2}}$ का मान क्या होगा –

1
𝟑𝟒/𝟓
2
𝟑𝟗/𝟓
3
𝟒𝟐/𝟓
4
𝟓𝟐/𝟓

Answer:- 2

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