Which of the following are also representations of (2.5, 135 degrees)? Select all that apply. [2 answers]
a. (2.5, -225 degrees)
b. (-2.5, -225 degrees)
c. (-2.5, 45 degrees)
d. (-2.5, -45 degrees)
e. (-2.5, 315 degrees)
6 answers
what is 135-360?
135-360=-225
But how do determine the first number?
But how do determine the first number?
Ignore that question.
Are the answers A and B?
Are the answers A and B?
Clearly not both A and B, since they have the same angle, but opposite values for r.
A is correct, since 135-360 = -225
Now, if you want r to be -2.5, then your angle needs to be in the opposite direction, or
135-180 = -45. That would be D
Try actually plotting the point and seeing which angles get there, using positive and negative values for r.
A is correct, since 135-360 = -225
Now, if you want r to be -2.5, then your angle needs to be in the opposite direction, or
135-180 = -45. That would be D
Try actually plotting the point and seeing which angles get there, using positive and negative values for r.
don't know if anyone else had to give three answers to this, but e is also correct
its a c and e
1 answer