The Student Room Group

Trigonometrical Equations

I have tried to workout why my answer is different from the official answers.
The question is to FIND ALL THE VALUES IN THE RANGE 0 to 360 degrees
and the specific question is tan-1(-0.3)

I have go one of the answers of 343.30 but cant seem to workout the lower value.
Original post by cosv
I have tried to workout why my answer is different from the official answers.
The question is to FIND ALL THE VALUES IN THE RANGE 0 to 360 degrees
and the specific question is tan-1(-0.3)

I have go one of the answers of 343.30 but cant seem to workout the lower value.


you should just be able to add or subtract 180 degrees to get the next one :dontknow:

Quick Reply