Question

Log 11/55 + log 490/297 - 2 log 7/9 - log 2

Answer 1

Log 11/55 + log 490/297 - 2log 7/9 - log 2
= log 1/5 + log 490/297  - log 49/81 - log2
= log (490/297 x 5) - (log 49/81 x 2)
= log (98/297) - log (49/162)
= log (98 x 162 / 297 x 49)
= log ( 2 x 18 / 33)
= log (36/33)
=log (12/11)     Semog membantu :)