Whenever cosθ is positive and sinθ is negative, θ is always in the fourth quadrant.
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QUEATION IN POLAR I am amazed by these solutions
we now Q in one or third or fourth guadrant are diffrence
but here in this 2 quetion the solving are differnt when find Q Although the point in fourth guadrant in both quetion
See solving one why say - pi - 60
and anthoer 2 p- - 45
Although the point in fourth guadrant ??
see these soitions
please help me
By the way, when you write " " and " you are mixing "radians" and "degrees". Never do that!
In fact, except in problems specifically involving angles measured in degrees, you should always use radians.
Your answers should be and .
Of course, since has period , you could more easily just write and .