1.

`a`के किस मान के लिए `x+1/4 sqrt(x)+a^(2)` एक पूर्ण वर्ग होगा?A. `+-1/18`B. `1/8`C. `-1/5`D. `1/4`

Answer» Correct Answer - B
`x+1/4sqrt(x)+a^(2)`
`=(sqrt(x))^(2)+2xx1/8xxsqrt(x)+a^(2)`
`[(A^(2)+2BA+B^(2))=(A+B)^(2)]`
Here `, A=sqrt(x)` and `B=a`
`B=1/8:.a=1/8`


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