Plzzz solv it fast friends
(a^-1 + b^-1) ÷ (a^-2 - b^-2)
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we can write this as 1/a+1/b ÷1/a²-1/b²
or b+a/ab ÷b²-a²/a²b²
or, b+a/ab ×(ab)²/b²-a²
or, ab/b-a. so this is the answer
or b+a/ab ÷b²-a²/a²b²
or, b+a/ab ×(ab)²/b²-a²
or, ab/b-a. so this is the answer
vickeydey:
thanks bro
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