Question 1097871
if cosecant is positive, then sine is positive since cosecant is the reciprocal of sine.


if secant is positive, then cosine is positive since secant is the reciprocal of cosine.


on the graph of the unit circle, sine is equivalent to y and cosine is equivalent to x.


x and y are positive in the first quadrant only.


in the second quadrant, x is negative.
in the third quadrant x and y are negative.
in the fourth quadrant y is negative.


here's a reference:


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