Advertisements
Advertisements
Question
Solve for x: `("log"125)/("log"5)` = logx
Sum
Advertisements
Solution
`("log"125)/("log"5)` = logx
⇒ `("log"5^3)/("log"5)` = logx
⇒ `(3"log"5)/("log"5)` = logx
⇒ 3 = logx
⇒ 3log10 = log x ...(since log 10 = 1)
⇒ log 103 = logx
∴ x = 103
= 1000
shaalaa.com
More About Logarithm
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
If log`( a - b )/2 = 1/2( log a + log b )`, Show that : a2 + b2 = 6ab.
Solve : log5( x + 1 ) - 1 = 1 + log5( x - 1 ).
Solve the following:
log(x2 + 36) - 2log x = 1
Solve for x: `("log"128)/("log"32)` = x
Solve for x: `("log"1331)/("log"11)` = logx
Express log103 + 1 in terms of log10x.
Prove that (log a)2 - (log b)2 = `"log"("a"/"b")."log"("ab")`
If log (a + 1) = log (4a - 3) - log 3; find a.
Prove that: `(1)/("log"_2 30) + (1)/("log"_3 30) + (1)/("log"_5 30)` = 1
If a = log 20 b = log 25 and 2 log (p - 4) = 2a - b, find the value of 'p'.
