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CLEP cheat sheet

CLEP Precalculus cheat sheet

A condensed reference for the formulas, graph-reading rules, and must-know facts most worth reviewing before exam day.

Must-know facts

  • Unit circle: sin/cos of 0, 30, 45, 60, 90 degrees (and their radian equivalents).
  • Pythagorean identity: sin^2(x) + cos^2(x) = 1.
  • Function transformations: f(x)+k shifts up, f(x-h) shifts right, -f(x) reflects.
  • Logs and exponentials are inverses; log(ab) = log a + log b.

Strategy

  • Memorize the unit circle cold; it unlocks most trig questions.
  • Practice both with and without a calculator, since the exam splits the two.

Practice this first: Functions — Function behavior, transformations, and inverses are the core.

Now put it to work — practice CLEP Precalculus free

Reviewing the sheet is step one. Passers are usually hitting about 70-80% on realistic practice before test day (CLEP costs about $93, with a 3-month retake lockout on a miss), so the fastest way to know you are ready is to start answering real questions.