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Can A Sine Be Negative? [Solved]
Both x and y coordinates are negative in the third quadrant. Since the hypotenuse is a +1, both the sine and the cosine must be negative. As the angle increases from 180° to 270°, the sine increases in magnitude but is now negative, so, the sine decreases from 0 to -1.
why sine minus theta is minus sine theta || proof of negative angle trignometric identity ||
in this video sajid sir give proof of all
Trigonometry - Negative angle identities
If you have a
Where is Sine/Cosine Positive or Negative?
Trigonometric understanding comes in layers. I explain how to find out whether the cosine/
