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A Year In Review

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A Year In Review - Page Text Content

BC: The End

FC: A YEAR IN REVIEW | Reviewing Precalculus & Trigonometry

1: Basic Trig functions | Some Old Hippie Caught Another Hippie Trippin' on Acid

2: Determining which trigonometric functions are positive in each quadrant | A Smart Trig Class (All, Sin, Tan, Cos)

3: Logarithms | Log base 3 of 27 = 3 3^3 is 27. that is how logarithms work | Ln means a natural logarithm. The base of Ln is e. e=2,7182818284

4: Quadratic Formula | -b + or - Square root of b^2 - 4ac all over 2a | There is a song to the tune of Frere Jaque.

5: Law of Sines | a/sinA= b/sinB=c/sinC | It's just easy to remember.

6: The legs of a 45-45-90 triangle are congruent. The hypotenuse is equal to the square root of 2 times one of the legs.

7: To find Coterminal angles, add or subtract 360 degrees to/from an angle

8: Law of Cosines | a^2=b^2+c^2-2bc cosA b^2=a^2+c^2-2ac cosB c^2=a^2+b^2-2ab cosC

9: Happy Father's Day | Vectors | To evaluate vectors, you use an equation just like the law of cosines except you substitute |u| for b, |v| for c, and the given angle for A.

10: Life brings simple pleasures to us every day. It is up to us to make them wonderful memories. ~Cathy Allen

12: Summer Time!

18: Trick or Treat


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  • By: Isaac N.
  • Joined: almost 8 years ago
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  • Title: A Year In Review
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  • Published: almost 8 years ago