Question

Diketahui nilai log 2 = 0,301 dan log 5 = 0,6990. Nilai log 25 - 4log (√2) adalah...

Answer 1

Log 25- 4log √2
log 5²- 2²log √2
2  log 5- 1
2 (0,6990) - 1= 0,398

Answer 2

Log 25 - 4 log √2
=log 5² - 4 log 2^½
=2 log 5 - 4/2 log 2
=2. 0,6990 - 2. 0,301
=1,398 - 0,602
=0,796