Trigonometry

ASTC trigonometry calculus

All Students Take Calculus

August 25, 2024

Have you ever had trouble remembering when sines, cosines, and tangents are positive or negative? If so, you may want to remember the mnemonic ASTC, which stands for All, Sine, Tangent, Cosine and can be remembered as “All Students Take Calculus.” The acronym tells you which trig functions are positive in each quadrant, starting from […]

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