Thread: Radians

Using your calculator, find a solution for in RADIANS (if possible). If no solution exists, enter NONE.

Though many solutions may exist, you should only provide ONE answer (which comes from using the inverse trigonometric function keys on your calculator).

when (round your answer to four decimal places)

I got what I believe to be the answer but I am being told its wrong

so i take $\displaystyle \tan (\theta-4)=0.25 \rightarrow \tan^-1( \tan (\theta-4)=\tan^-1(0.25)\rightarrow \theta-4=\tan^-1(0.25) \rightarrow \theta=18.03624347 $

Are my calculation correct?

Originally Posted by M670

Using your calculator, find a solution for in RADIANS (if possible). If no solution exists, enter NONE.
so i take $\displaystyle \tan (\theta-4)=0.25 \rightarrow \tan^-1( \tan (\theta-4)=\tan^-1(0.25)\rightarrow \theta-4=\tan^-1(0.25) \rightarrow \theta=18.03624347 $
Are my calculation correct?

NO


$\displaystyle \arctan(0.25)=0.24498$

Originally Posted by Plato

NO


$\displaystyle \arctan(0.25)=0.24498$

When I calculate $\displaystyle \arctan(0.25)=14.036243468 $

Originally Posted by M670

When I calculate $\displaystyle \arctan(0.25)=14.036243468 $

Put your calculator in radian mode.

ahh ha now it works ... $\displaystyle \theta = 4.2448 $