Question

if a =root 7 -6/root +6 and b=root 7 = root 6 /root 7 - root find the value of a2+b2 + ab

Answer 1

Answer:

Step-by-step explanation:

x =(√7+√6)/(√7-√6)

x + 1/x = (√7+√6)/(√7-√6)+(√7-√6)/(√7+√6)

= {(√7+√6)² + (√7-√6)²}/{(√7+√6)(√7-√6)}

= 2(7+6)/{7-6}

= 2× 13/1

= 26

(x + 1/x)² = 26² = 676

hope this answer helps you

please follow me