InterviewSolution
Saved Bookmarks
| 1. |
If Y=SX, Z=tX all the variables being differentiable functions of x and lower suffices denote the derivative with respect to x and |{:(X,Y,X),(X_(1),Y_(1),Z_(1)),(X_(2),Y_(2),Z_(2)):}|+|{:(S_(1),t_(1)),(S_(2),t_(2)):}|=X^(n), then n= |
|
Answer» Solution :`(c )` `Delta=|{:(X,SX,tX),(X_(1),SX_(1)+S_(1)X,tX_(1)+t_(1)X),(X_(2),SX_(2)+2S_(1)X_(1)+S_(2)X,tX_(2)+2t_(1)X_(1)+t_(2)X):}|` `({:(C_(2)toC_(2)-SC_(1)),(C_(3)toC_(3)-tC_(1)):})` `=|{:(X,0,0),(X_(1),S_(1)X,t_(1)X),(X_(2),2S_(1)X_(1)+S_(2)X,2t_(1)X_(1)+t_(2)X):}|` `=X^(2)|{:(S_(1),t_(1)),(2S_(1)X_(1)+S_(2)X,2t_(1)X_(1)+t_(2)X):}|` `=X^(3)|{:(S_(1),t_(1)),(S_(2),t_(2)):}|(R_(2)toR_(2)-2X_(1)R_(1))` `:.n=3` |
|