Hola, iam Mark Lamb, Don’t miss me too much.
Is Sine Negative Cosine? [Solved]
Trigonometric functions sine and cosine are both positive in first quadrant but in third quadrant both are negative. Hence in these two quadrants they have same sign. However, in second quadrant while sine is positive, cosine is negative.15 Oct 2016
Where is Sine/Cosine Positive or Negative?
Trigonometric understanding comes in layers. I explain how to find out whether the
Sine and Cosine of a Negative Angle
We get positive angles by starting on the x-axis and rotating counter clockwise. By going in the opposite direction (clockwise) we …
Explaining why in different quadrant the angle sine, cosine, and tangent are positive or negative.
At the begging of the video, I told 4th quadrant instead of the 3rd quadrant. Sorry for that error.
