Based only on the information given in the diagram it is guaranteed that ABC~ XYZ

9/10 divide by -3/15 as a mixed number

Find the solution on the interval [0, 2pi)

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%