Timmmm1 Timmmm1

16-05-2016
Mathematics

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Which is equal to the product of HJ?

Which is equal to the product of HJ class=

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meerkat18 meerkat18

30-05-2016

H = 1st row 4 -2 5
2nd row 6 1 -3

J = 1st column 7 3 8

1st row and 1st column: 4*7 + -2*3 + 5*8 = 28 - 6 + 40 = 62
2nd row and 1st column: 6*7 + 1*3 + -3*8 = 42 + 3 - 24 = 21

Answer is 2nd option. 62 and 21.

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