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Log 9 (81)

Log 9 (81) is the logarithm of 81 to the base 9:

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Result:
Simply the Best Logarithm Calculator! Click To Tweet As you can see in our log calculator, log9 (81) = 2.

Calculate Log Base 9 of 81

To solve the equation log 9 (81) = x carry out the following steps.
  1. Apply the change of base rule:
    log a (x) = log b (x) / log b (a)
    With b = 10:
    log a (x) = log(x) / log(a)
  2. Substitute the variables:
    With x = 81, a = 9:
    log 9 (81) = log(81) / log(9)
  3. Evaluate the term:
    log(81) / log(9)
    = 1.39794000867204 / 1.92427928606188
    = 2
    = Logarithm of 81 with base 9
Here’s the logarithm of 9 to the base 81.

Additional Information

  • From the definition of logarithm b y = x ⇔ y = log b(x) follows that 9 2 = 81
  • 9 2 = 81 is the exponential form of log9 (81)
  • 9 is the logarithm base of log9 (81)
  • 81 is the argument of log9 (81)
  • 2 is the exponent or power of 9 2 = 81
BTW: Logarithmic equations have many uses in various contexts in science.

Frequently searched terms on our site include:

FAQs

What is the value of log9 81?

Log9 (81) = 2.

How do you find the value of log 981?

Carry out the change of base logarithm operation.

What does log 9 81 mean?

It means the logarithm of 81 with base 9.

How do you solve log base 9 81?

Apply the change of base rule, substitute the variables, and evaluate the term.

What is the log base 9 of 81?

The value is 2.

How do you write log 9 81 in exponential form?

In exponential form is 9 2 = 81.

What is log9 (81) equal to?

log base 9 of 81 = 2.

For further questions about the logarithm equation, common logarithms, the exponential function or the exponential equation fill in the form at the bottom.

Summary

In conclusion, log base 9 of 81 = 2.

You now know everything about the logarithm with base 9, argument 81 and exponent 2.
Further information, particularly about the binary logarithm, natural logarithm and decadic logarithm can be located in our article logarithm.

Besides the types of logarithms, there, we also shed a light on the terms on the properties of logarithms and the logarithm function, just to name a few.
Thanks for visiting Log9 (81).

Table

Our quick conversion table is easy to use:
log 9(x) Value
log 9(80.5)=1.9971819128951
log 9(80.51)=1.9972384459817
log 9(80.52)=1.9972949720469
log 9(80.53)=1.9973514910924
log 9(80.54)=1.99740800312
log 9(80.55)=1.9974645081313
log 9(80.56)=1.9975210061282
log 9(80.57)=1.9975774971124
log 9(80.58)=1.9976339810856
log 9(80.59)=1.9976904580495
log 9(80.6)=1.9977469280059
log 9(80.61)=1.9978033909566
log 9(80.62)=1.9978598469033
log 9(80.63)=1.9979162958476
log 9(80.64)=1.9979727377914
log 9(80.65)=1.9980291727364
log 9(80.66)=1.9980856006843
log 9(80.67)=1.9981420216369
log 9(80.68)=1.9981984355959
log 9(80.69)=1.9982548425629
log 9(80.7)=1.9983112425399
log 9(80.71)=1.9983676355284
log 9(80.72)=1.9984240215303
log 9(80.73)=1.9984804005471
log 9(80.74)=1.9985367725808
log 9(80.75)=1.998593137633
log 9(80.76)=1.9986494957054
log 9(80.77)=1.9987058467998
log 9(80.78)=1.9987621909179
log 9(80.79)=1.9988185280614
log 9(80.8)=1.9988748582321
log 9(80.81)=1.9989311814317
log 9(80.82)=1.9989874976618
log 9(80.83)=1.9990438069243
log 9(80.84)=1.9991001092208
log 9(80.85)=1.9991564045531
log 9(80.86)=1.9992126929229
log 9(80.87)=1.9992689743319
log 9(80.88)=1.9993252487818
log 9(80.89)=1.9993815162744
log 9(80.9)=1.9994377768114
log 9(80.91)=1.9994940303945
log 9(80.92)=1.9995502770254
log 9(80.93)=1.9996065167058
log 9(80.94)=1.9996627494375
log 9(80.95)=1.9997189752221
log 9(80.96)=1.9997751940615
log 9(80.97)=1.9998314059572
log 9(80.98)=1.9998876109111
log 9(80.99)=1.9999438089248
log 9(81)=2
log 9(81.01)=2.0000561841385
log 9(81.02)=2.000112361342
log 9(81.03)=2.0001685316121
log 9(81.04)=2.0002246949507
log 9(81.05)=2.0002808513593
log 9(81.06)=2.0003370008398
log 9(81.07)=2.0003931433938
log 9(81.08)=2.000449279023
log 9(81.09)=2.0005054077291
log 9(81.1)=2.0005615295139
log 9(81.11)=2.0006176443791
log 9(81.12)=2.0006737523263
log 9(81.13)=2.0007298533573
log 9(81.14)=2.0007859474738
log 9(81.15)=2.0008420346774
log 9(81.16)=2.0008981149699
log 9(81.17)=2.000954188353
log 9(81.18)=2.0010102548284
log 9(81.19)=2.0010663143978
log 9(81.2)=2.0011223670628
log 9(81.21)=2.0011784128252
log 9(81.22)=2.0012344516868
log 9(81.23)=2.0012904836491
log 9(81.24)=2.0013465087139
log 9(81.25)=2.0014025268829
log 9(81.26)=2.0014585381577
log 9(81.27)=2.0015145425402
log 9(81.28)=2.0015705400319
log 9(81.29)=2.0016265306346
log 9(81.3)=2.0016825143499
log 9(81.31)=2.0017384911796
log 9(81.32)=2.0017944611254
log 9(81.33)=2.0018504241889
log 9(81.34)=2.0019063803718
log 9(81.35)=2.0019623296758
log 9(81.36)=2.0020182721027
log 9(81.37)=2.0020742076541
log 9(81.38)=2.0021301363317
log 9(81.39)=2.0021860581372
log 9(81.4)=2.0022419730722
log 9(81.41)=2.0022978811386
log 9(81.42)=2.0023537823378
log 9(81.43)=2.0024096766718
log 9(81.44)=2.002465564142
log 9(81.45)=2.0025214447502
log 9(81.46)=2.0025773184982
log 9(81.47)=2.0026331853875
log 9(81.480000000001)=2.0026890454199
log 9(81.490000000001)=2.002744898597
log 9(81.500000000001)=2.0028007449206

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