Question

Solve the equation -3 cos t= 1 in the interval from 0 < theta < 2pi. Round to the nearest hundredth.

Answer 1

Hey :)
\(\large\rm -3\cos t=1\)
Dividing by -3 gives us:
\(\large\rm \cos t=-\dfrac{1}{3}\)

Answer 2

To solve for t, I suppose we need to make use of our inverse function,
\(\large\rm \arccos\left(-\dfrac{1}{3}\right)=t\)