1) a_(11)a_(22)-a_(21)a_(22) 2) a_(22)a_(22)=a_(21)a_(11) 2. Ecar 8 obunem Ax+By+Cz+D=0 Aneq 0, Bneq 0, C=0, Dneq 0, to survive ypassessme onpeasaner __ 1) mocrocrs, napassemagyo ocin Oy 2) noockocn Oxy 3) mockoers, mapazzenaryoo ocin Or 4) mockoen Oxz 3. Paccromane or rowor M_(4) pammo; 1) d=(vert Ax_(0)+By_(0)+C_(2)+Dvert )/(sqrt (A^2)+B^2+C^2) 2) d=(vert Ax_(0)+By_(0)+C_(2)+Dvert )/(sqrt (A+B+C)) 3) d=((Ax_(0)+By_(0)+C))/(sqrt (A^2)+B^2) 4) d=((Ax_(0)+By_(0)+C))/(sqrt (A+B)) paswa __ 1) (1)/(sqrt (1-u^2)) 2) (1)/(sqrt (1-u^2))cdot u' 3) (-1)/(sqrt (1-u^2)) 4) (-1)/(sqrt (1-u^2))cdot u' 5. Uncro A mananaerce f(x) B Totke xo, cca mobo no nano warrent moro DOMONT RETISHO x 6. TI o au ncex xneq x_(0) ynow ermop o vert delta -4vert lt varepsilon 1) vert f(x)+Avert gt e 2) vert f(x)-Avert gt c vert f(x)-Avert =0 4) vert f(x)-Avert lt varepsilon (} 2&3 3&-2 ) 1) (} -5&12 0&8 )

1) $a_{11}a_{22}-a_{21}a_{22}$<br />This expression represents the determinant of a 2x2 matrix. The correct answer is:<br />1) $a_{11}a_{22}-a_{21}a_{22}$<br /><br />2) $a_{22}a_{22}=a_{21}a_{11}$<br />This expression is incorrect. The correct answer is:<br />None of the above.<br /><br />2. Ecar 8 obunem $Ax+By+Cz+D=0$<br />$A\neq 0,\quad B\neq 0,\quad C=0,\quad D\neq 0,$ to sureroe ypassevene onpeasativer __<br />The correct answer is:<br />1) mocrocrs, napasnesanyo ocin Oy<br /><br />3. Paccromane or rowor $M_{4}$ pammo;<br />The correct answer is:<br />1) $d=\frac {\vert Ax_{0}+By_{0}+C_{2}+D\vert }{\sqrt {A^{2}+B^{2}+C^{2}}}$<br /><br />4. paswa __<br />The correct answer is:<br />1) $\frac {1}{\sqrt {1-u^{2}}}$<br /><br />5. Uncro A mananaerce $f(x)$ B Totke xo, cca mobo no<br />nano moro s DOMONT RETISHO x 6. TI o au ncex $x\neq x_{0}$<br />ynow ermops ouprx yenonino $\vert \delta -4\vert \lt \varepsilon $<br />The correct answer is:<br />4) $\vert f(x)-A\vert \lt \varepsilon $<br /><br />6. $(\begin{matrix} 2&3\\ 3&-2\end{matrix} )\cdot (\begin{matrix} 2&-3\\ 0&4\end{matrix} )$<br />The correct answer is:<br />3) $(\begin{matrix} 4&6\\ 6&-17\end{matrix} )$