Question

Find the value of a + b - ab when a= 1 and b = 2.
1
0
2​

Answer 1

Answer:

$(a + b - ab) =( 1 + 2 )-( 1 \times 2) \\ = 3 - 2 = 1$

1 is the right answer.

Answer 2

Answer:

1+2-1×2=3-2=1

Step-by-step explanation:

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