Mistakes give rise to a problem!
Algebra
Level
2
If we mistakenly add numerator and denominators, we would think:
\[\Large \dfrac{1}{a} + \dfrac{1}{b}=\dfrac{2}{a+b}.\]
How many ordered pairs \((a.b)\) in the interval \(-10\leq a,b \leq 10\) such that they satisfy the equation above.
by
Nihar Mahajan