1.

यदि `a^(2)+b^(2)=5ab` है तो `(a^(2))/(b^(2))+(b^(2))/(a^(2))` का मान ज्ञात करें।A. 32B. 16C. 23D. -23

Answer» Correct Answer - C
`a^(2)+b^(2)=5ab`
`implies (a^(2))/(ab)+(b^(2))/(ab)=5`
`implies a/b+b/a=5`
Squaring both sides
`(a/b)^(2)+(b/a)^(2)+2xx a/bxx b/a=25`
`(a^(2))/(b^(2))+(b^(2))/(a^(2))=25-2=23`


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