Robuta

If a b and c are distinct positive real numbers and a2+b2+c21 then ab + bc + ca is a less than 1 b equal to 1 c greater than 1 d any real number

The very first step we would like to do here is to remove the under-root term in denominator, hence multiplying both numerator and denominator with Now a

Suppose a b are positive real numbers such that asqrt a + bsqrt b 183 asqrt b + bsqrt a 182 Find dfrac95a + b