Question

Consider two conditions x²-3x-10<0 AND |x-2| < a , x is a real number and "a" is a positive real number ( a>0 ) .
A necessary AND sufficient condition for x²-3x-10<0 is that -2 9 years ago

Answer 1

Few things first :

1) We may think of |x - 2| as the distance between `2` and some other number `x` on real number line