find log75\16-2lig5\9+log32\243=log2
Answers
Answer:
Given log(75/16) - 2log(5/9) + log(32/243). ------ (1)
We know that a log(b) = log b^a.
2 log(5/9) = log (5/9)^2.
We know that log(a) - log(b) = log(a/b).
log(75/16) - log(5/9)^2 = log(75/16/(5/9)^2.
= log (75/400/81)
= log (75 * 31/400)
= log (6075/400)
= log (243/16) ----- (2)
Substitute (2) in (1), we get
= log (243/16) + log(32/243)
We know that log a + log b = log ab.
log(243/16) + log(32/243) = log(243/16 * log 32/243)
= log(243 * 32/16 * 243)
= log(32/16)
= log 2.
Hope this helps!
Step-by-step explanation: