The exercise is:
write the expression in polar form:
Here is my work:
that is
and that becomes:
and then
anyway the correct answer is -1 I get the absolute value wrong can anyone spot my error.?
Here's your error. has argument or , not or .
The right triangle formed by the lines from (0, 0) to , (0, 0) to , and from to is half of an equilateral triangle. It vertex angle is 30 degrees or radians.
anyway the correct answer is -1 I get the absolute value wrong can anyone spot my error.?