Logarithm

                        Logarithm
https://educationgalaxies.blogspot.com/2020/05/logarithm.html
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Learn how to find the value of Log and Antilog in easy method.
Log1=0.00
Log2=0.30
Log3=0.48
Log4=0.60
Log5=0.70
Log6=0.78
Log7=0.84
Log8=0.90
Log9=0.95
Log10=1.00

Tricks
*Log6=log(2×3)
           =Log2+Log3
          =0.30+0.48
          =0.78

*Log8=Log2^3
          =3Log2
          =3×0.30
          =0.90

*Log4.62
Solution:
                Log4=0.60
                Log5=0.70 
           Diff=0.10×0.62
                    =  0.062
            Log4.62 =  0.60+0.062=0.662

*Log6.7
Solution:
                Log6=0.78
                Log7=0.84 
       Diff=0.06×0.7
                 = 0.042
      Log6.7 =0.78+0.042
Antilog

*Antilog 2.72=10²·⁷²
                                              Log5=0.70
(mid value of 5 and 6)5.5                        0.74(mid value of 0.70and 0.78)
                                              Log6=0.78
                         =5.25 *10²(write first digit as power of 10)
*Antilog5.40
                                              Log2=0.30
(mid value of 2 and 3)5.5                        0.39(mid value of 0.30and 0.48)
                                              Log3=0.48
                         =2.55*10⁵(write first digit as power of 10)
                 
*Antilog2 .64
                                              Log4=0.60
(mid value of 4 and 5)4.5                        0.65(mid value of 0.60and 0.70)
                                              Log5=0.70
                        =4.4*10⁻²
(write first digit as power of 10)
                      


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