Nowadays this is done most easily with an advanced graphing calculator.
Chat with our AI personalities
trig
You can calculate that on any scientific calculator - like the calculator on Windows (if you change the options, to display as a scientific calculator). Log base 4 of 27 is the same as log 27 / log 4. You can use logarithms in any base to calculate that - just use the same base for both logarithms.
Yes, sine is a trig function, it is opposite over hypotenuse.
If you are in school and are studying trig then you are using trig in real life.
Surveying is all trig. Much trig in physics and engineering,