InterviewSolution
Saved Bookmarks
| 1. |
यदि `x=5+2sqrt(6)`, है तो `(sqrt(x)+1/(sqrt(x)))` का मान क्या होगा?A. `2sqrt(2)`B. `3sqrt(2)`C. `2sqrt(3)`D. `sqrt(3)` |
|
Answer» Correct Answer - C `x=5+2sqrt(6)` `x=3+2+2sqrt(3)xxsqrt(2)` `x=(sqrt(3))^(2)+(sqrt(2))^(2)+2sqrt(3)xxsqrt(2)` `x=(sqrt(3)+sqrt(2))^(2)` `sqrt(x)=sqrt(3)+sqrt(2)` Similarly `implies1/(sqrt(x))=sqrt(3)-sqrt(2)` `sqrt(x)+1/(sqrt(x))=sqrt(3)+sqrt(2)+sqrt(3)-sqrt(2)` `=2sqrt(3)` |
|