Question

a^2 + b^2 = 7ab then
2 log (a - b) is equal to ?....

1) log 5 + log a + log b
2) 2 log 5 + log a + log b
3) log 5 - log a -log b
4) log 5 - log a + log b​

Answer 1

Hey There

Here's the Answer

____________________________

• To Find : 2 × log ( a - b )

• Given : a² + b² = 7ab

=> 2 × log ( a - b )

=> log ( a - b )²

=> log ( a² + b² - 2ab )

• Putting value, a² + b² = 7ab

=> log ( 7ab - 2ab )

=> log ( 5ab )

• It can also be written as

=> log ( 5 ) + log ( a ) + log ( b )

• Option ( 1 ) is the correct answer.

Hope It Helps.

Answer 2

Answer:

option 1

hope it helps u.......