જો ${f_n}(x)$,${g_n}(x)$,${h_n}(x)$ જ્યાં $n = 1, 2, 3$ એ $x$ માં બહુપદીઓ છે,જેથી ${f_n}(a) = {g_n}(a) = {h_n}(a)$ જ્યાં $n = 1, 2, 3$,તો નિશ્ચાયક $F(x) = \left| \begin{matrix} {f_1}(x) & {f_2}(x) & {f_3}(x) \\ {g_1}(x) & {g_2}(x) & {g_3}(x) \\ {h_1}(x) & {h_2}(x) & {h_3}(x) \end{matrix} \right|$ ની કિંમત $x = a$ આગળ કેટલી થાય?

  • A
    $0$
  • B
    ${f_1}(a){g_2}(a){h_3}(a)$
  • C
    $1$
  • D
    આમાંથી કોઈ નહીં

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સાબિત કરો કે $\Delta = \left| \begin{array}{ccc} a+bx & c+dx & p+qx \\ ax+b & cx+d & px+q \\ u & v & w \end{array} \right| = (1-x^2) \left| \begin{array}{ccc} a & c & p \\ b & d & q \\ u & v & w \end{array} \right|$

શૂન્યતર $a, b, c$ માટે,જો $\Delta = \begin{vmatrix} 1 + a & 1 & 1 \\ 1 & 1 + b & 1 \\ 1 & 1 & 1 + c \end{vmatrix} = 0$ હોય,તો $\frac{1}{a} + \frac{1}{b} + \frac{1}{c}$ ની કિંમત =

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જો $a \neq p, b \neq q, c \neq r$ અને $\left|\begin{array}{ccc}p & b & c \\ p+a & q+b & 2c \\ a & b & r\end{array}\right|=0$ હોય, તો $\frac{p}{p-a}+\frac{q}{q-b}+\frac{r}{r-c}$ ની કિંમત શોધો :

નિશ્ચાયક $\left| \begin{array}{ccc} 1 & a & b + c \\ 1 & b & c + a \\ 1 & c & a + b \end{array} \right|$ નું મૂલ્ય શું છે?

નિશ્ચાયકનું મૂલ્ય શોધો: $\left| \begin{array}{ccc} a_1 & m a_1 & b_1 \\ a_2 & m a_2 & b_2 \\ a_3 & m a_3 & b_3 \end{array} \right|$

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