5)Expand the following determinants3 1 -2(i) 0 0 13 -5 0(ii) 12 13 143

1.	5)Expand the following determinants3 1 -2(i) 0 0 13 -5 0(ii) 12 13 1433 34 35REDMI NOTE 5 PRO
Answer» i) 3(0-(-1)(-5)) -(-1)(0-1(-3))+(-2)((-5)3-(3)(-1)) = 3(-5) + 1(3) - 2(-15+3) = -15 + 3 + 24 = 12 ii) 1(35×13-34×14) - 2(12×35-33×14) + 3(12×34-33×13) = 1(-21) - 2(-42) + 3(-21) = -21+84-63 = 0 If you find this answer helpful then like it.

5)Expand the following determinants3 1 -2(i) 0 0 13 -5 0(ii) 12 13 1433 34 35REDMI NOTE 5 PRO

Answer»

i) 3(0-(-1)*(-5)) -(-1)(0-1*(-3))+(-2)((-5)*3-(3)*(-1)) = 3*(-5) + 1(3) - 2*(-15+3) = -15 + 3 + 24 = 12

ii) 1(35×13-34×14) - 2(12×35-33×14) + 3(12×34-33×13) = 1*(-21) - 2*(-42) + 3(-21) = -21+84-63 = 0

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