Question

If a-b=3 and a2+b2=20.find ab=?

Answer 1

Answer:

Given,

a-b = 3

Now,

a^2 + b^2 = 20

✔ a^2 + b^2 - 2ab + 2ab = 20

✔ (a - b) ^2 + 2ab = 20

✔ 3^2 + 2ab = 20

✔ 9 + 2ab = 20

✔ 2ab = 11

✔ ab = 11/2

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Answer 2

Answer:

this is your answer buddy

Step-by-step explanation:

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