Question

The sum of square of two no. is 145. if square root of one no. is 3. then find the other no. .

Answer 1

Answer:

a2=(a2+b2)+(a2−b2)2

b2=(a2+b2)−(a2−b2)2

⟹a2=145+172=81

⟹b2=145−172=64

⟹a=±9 b=±8