InterviewSolution
Saved Bookmarks
| 1. |
यदि `x(3-2/x)=3/x` हो तो `x^(2)+1/(x^(2))` का मान क्या है?A. `3 1/9`B. `3 2/9`C. `2 1/9`D. `2 4/9` |
|
Answer» Correct Answer - D `x(3-2/x)=3/x` `3x-2=3/x` `3x-3x=2` `3(x-1/x)=2` `x-1/x=2/3` Squaring both side `x^(2)+1/(x^(2))-2xx x xx 1/x=4/9` `x^(2)+1/(x^(2))=4/9+2` `[x^(2)+1/(x^(2))=2 4/9]` `x^(2)+1/(x^(2))=2 4/9` |
|