Did you know that the signs of the trigonometric ratios can be remembered by the phrase “ALL SILVER TEA CUPS “?
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A in “All” stands for all the ratios in the first quadrant are positive
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S in the “Silver” is for Sine and Cosecant in the second quadrant are alone positive
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T in “Tea” is for Tan and Cotangent in the third quadrant are alone positive and
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C in the “Cups” for the Cosine and Secant in the 4th quadrant are alone positive.
Here are a couple of examples on Clay6 for the above tip https://clay6.com/qa/1046/ and https://clay6.com/qa/1000
