 Calculators  AI Whiteboard  Worksheets & Tests Go Premium  Topics

 Tap to take a pic of the problem

Find the logarithm of $81$ to the base $9$

Related Videos

Go!

Symbolic mode

Text mode



Go!

1

2

3

4

5

6

7

8

9

0



a

b

c

d

f

g

m

n

u

v

w

x

y

z

.

(◻)

+

-

×

◻/◻

/

÷

◻²

◻^◻

√◻

√

^◻√◻

^◻√

∞

e

π

ln

log

log_◻

lim

d/dx

D^□_x

∫

∫^◻

|◻|

θ

=

>

<

>=

<=

sin

cos

tan

cot

sec

csc

asin

acos

atan

acot

asec

acsc

sinh

cosh

tanh

coth

sech

csch

asinh

acosh

atanh

acoth

asech

acsch

 Solution

 Videos

Algebra 2 - How To Evaluate a Logarithm when the Answer is a Fraction

https://www.youtube.com/watch?v=-NIkodZBC00

Tutorial - Evaluating Logarithms Without a Calculator

https://www.youtube.com/watch?v=YPNTEElq9E4

Evaluating Logarithms Without a Calculator

https://www.youtube.com/watch?v=QsZtiltH35Y

Derivative of log_x (for any positive base aÃÂ1) | AP Calculus AB | Khan Academy

https://www.youtube.com/watch?v=2XB4K6T-yKo

Algebra 2 - Evaluating a logarithmic Function Using the One to One Property

https://www.youtube.com/watch?v=l5cPQS5Q7sE

Algebra 2 - Evaluating a Logarithm by Converting to Exponential Form

https://www.youtube.com/watch?v=pe0_QxPodUM

 Function Plot

Plotting: $2$

SnapXam A²

Answer Assistant

beta
Got a different answer? Verify it!



Go!

1

2

3

4

5

6

7

8

9

0



a

b

c

d

f

g

m

n

u

v

w

x

y

z

.

(◻)

+

-

×

◻/◻

/

÷

◻²

◻^◻

√◻

√

^◻√◻

^◻√

∞

e

π

ln

log

log_◻

lim

d/dx

D^□_x

∫

∫^◻

|◻|

θ

=

>

<

>=

<=

sin

cos

tan

cot

sec

csc

asin

acos

atan

acot

asec

acsc

sinh

cosh

tanh

coth

sech

csch

asinh

acosh

atanh

acoth

asech

acsch

 How to improve your answer:

 Main Topic: Evaluate Logarithms

Evaluate basic logarithmic expressions, knowing that $a^x=b$ is equal to $\log_a(b)=x$.

 Related Topics