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Question

If z = xy-yx
then, match the following column.

A
3 2
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B
32
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C
0.0
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D
83
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Solution

Here, given as z = xy-yx
i.) If x = -6 and y = 3
here putting the value of x & y,
we get z = 63-36
z = 63-36 = 2 - 12=3 2

ii.) If x = 5 and y = -10
here putting the value of x & y,
we get z = 510-105
z = -12+21 = 2 - 12= 32

iii.) If x = -4 and y = -4
here putting the value of x & y,
we get z = 44 - 44
z = 1- 1 = 0

iv.) If x = 3 and y = 9
here putting the value of x & y,
we get z = 39 - 93
z = 39-93 =13-31=8 3






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