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MATH MNEMONIC OF THE WEEK

Trig Functions


Which Trig Functions are Positive?

All seniors take calculus
The sentence demonstrates which trig functions are positive in each of the four quadrants of the Cartesian coordinate plane:

  • Quad I: All functions are positive.
  • Quad II: Only sine is positive.
  • Quad III: Only tangent is positive.
  • Quad IV: Only cosine is positive.