Question

a2-a1=?
where, a2=2, a1=-1​

Answer 1

Answer:

$2 - ( - 1) \\ = 2 + 1 \\ = 3$

Hope it helps you.

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Answer 2

a²-a¹ = 2-(-1)=2+1=3 as a²=2; a¹=-1, Please mark the answer as brainliest .