LOGARITHMS

PROBLEM1

What is the number whose logarithm to base 10 is  (U.M.E 1978 , Question 12)

 

SOLUTION

The number is 0.02229

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

           

 

 

 

 

 

 

Problem 27

If , find the value of x  A) 4  (B) 16  (C)  32   (D)  64  (UME 2008 Question 8, Set U03) 

Solution

           

 

Problem 28

If  log ₁₀ 2 = 0.3010 and log₁₀ 7 = 0.8451, evaluate log ₁₀ 280 ( UME 2009, Question 8, Set U03) 

 

Solution