Use your calculator to find cos−1(0.76) to the nearest degree.
A. 49°
B. 47°
C. 43°
D. 41°
please help me calculate this
looks like you need to read the user guide for you calculator. If it has a COS button, it will also have a button for alternate functions. You did this for TAN, right? somewhere there will be mention of inverse trig functions.
on my calculator, above the COS button there is a small red cos-1
The INV key is also labeled above in red. Surely yours looks similar to this.
did you clear all previous results first?
Sure sounds like user error to me.
back to the user's guide.
oobleck if you're not gonna help then why even respond.
impatient much?
again? We did this for TAN. What's so hard about COS?
you found cos(0.76°)
since cos(0) = 1, that explains the 0.999912027