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All Silver Tea Cups - Mnemonic for remembering the signs of trigonometric ratios

Did you know that the signs of the trigonometric ratios can be remembered by the phrase ALL SILVER TEA CUPS “?

  • A in “All” stands for all the ratios in the first quadrant are positive
  • S in the “Silver” is for Sine and Cosecant in the second quadrant are alone positive
  • T in “Tea” is for Tan and Cotangent in the third quadrant are alone positive and
  • 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 and


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