If a - b = 3 and a^2 + b^2 = 29, what is the value of ab?
Answers
Answered by
2
Hi Mate!!
a² + b² = { ( a - b )² +2ab }
=>. 29 = 9 + 2ab
=>. 29 - 9 = 2ab
=>. 20 = 2ab
=>. ab = 10
=>. Have a nice time. <=
a² + b² = { ( a - b )² +2ab }
=>. 29 = 9 + 2ab
=>. 29 - 9 = 2ab
=>. 20 = 2ab
=>. ab = 10
=>. Have a nice time. <=
Similar questions