Try another version of this question Convert the point with polar coordinates `(9,(7pi)/6)` to Cartesian coordinates. Enter exact values.
Get help: Box 1: Enter your answer as a point. Example: (2,5.5172)
The point is:
Enter each value as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Decimal values are not allowed
Trig functions (sin,cos,etc.) are not allowed `(-(9sqrt(3))/2,-9/2)`