Question

Find the principle and general values of log (–5).

Answer 1

Answer:

log 5 = 0.6990

Step-by-step explanation:

• We know that log 5 can be expressed as  log 5 = {log 10 / log 2}
• the division rule is : Log (m/n)= log m – log n
• so, the equation can be written as : log 5 = {log 10 – log 2}
• so the equation becomes : log 5 = 1 – log 2
• logarithmic table value log 2 = 0.3010
• Substituting the value of log 2 = 0.3010 in the above equation we get:

        log 5 = 1 – 0.3010

         log 5 = 0.6990

• Hence log 5 = 0.6990