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3 and 4 .Determinants and Matrices
easy
જો નિશ્રાયક $\Delta = \left| {\begin{array}{*{20}{c}}{{a_1}}&{{b_1}}&{{c_1}}\\{{a_2}}&{{b_2}}&{{c_2}}\\{{a_3}}&{{b_3}}&{{c_3}}\end{array}} \right|$, ${A_1},{B_1},{C_1}$ એ ${a_1},{b_1},{c_1}$ ના સહઅવયવ દર્શાવે છે તો આપેલ પૈકી . . . . સંબંધ અસત્ય છે.
A
${a_1}{A_1} + {b_1}{B_1} + {c_1}{C_1} = \Delta $
B
${a_2}{A_2} + {b_2}{B_2} + {c_2}{C_2} = \Delta $
C
${a_3}{A_3} + {b_3}{B_3} + {c_3}{C_3} = \Delta $
D
${a_1}{A_2} + {b_1}{B_2} + {c_1}{C_2} = \Delta $
Solution
(d) It is a fundamental concept.
Standard 12
Mathematics