Question

x + y = 3 ; 3x - 2y - 4 = 0 ही एकसामयिक समीकरणे सोडवण्या साठी D ची किंमत किती?
(A) 5
(B) 1
(C) -5
(D) -1

Answer 1

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OPTION D) -5

GIVEN:-

a = 1

a1 = 3

b = 1

b1 = -2

formula:-

$d = \binom{a \: b}{a1 \: b1}$

SOLUTION:-

D =

$\binom{1 \: 1}{3 \: - 2}$

= ( 1× ( -2) ) - ( 3 × 1 )

= -2 -3

= -5

D = -5

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