Math, asked by Ravi204, 1 year ago

ABC are real numbers greater than 1 . if loga X=24, log bX=40 and log abcX =12 then logcX equals is

Answers

Answered by parisakura98pari
39
it's easy 

given                logₐ x = 24  ⇒ log x / log a = 24
                       =  log a / log x = 1/24

similarly           log b / log x = 1/40

and               log abc / log x = 1/ 12  =  log a + log b + log c / log x = 1/12

               = log c / log x = 1/12 - 1/40 - 1/24 = 1/60

                now    log x / log c = 60     =     log base(c)  x = 60

hope u'll get it..................doubts? ask !  

Ravi204: log c -loga and b
Ravi204: why logax are writing 1/24
parisakura98pari: u see there's a property : log base (a) x = can be written as log base(10) x / log base(10) a which equals = 24
parisakura98pari: now reciprocal of it = 1/24
Ravi204: yes i understand
Ravi204: thank you
parisakura98pari: do u get...........generally we don't write base 10 , so written as simply log x...........mind u here a and x aren't in multiplication.....isn't it?
Ravi204: ok
parisakura98pari: hope that no more queries.......?
Ravi204: yes
Answered by anita7078
2

Answer:

60

Step-by-step explanation:

thanks for the watching

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