Question

Which of the trigonometric ratios are positive for

(i) 80°
(ii) - 150°
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Answer 1

Answer:

1. 80 degree is positive

Answer 2

Answer:

where x and y coordinates are all positive, all six trigonometric functions have positive values. In the second quadrant, only sine and cosecant (the reciprocal of sine) are positive. In the third quadrant, only tangent and cotangent are positive.