The Law of Sines and Cosines are fundamental to determine and derive the unknown variables of a triangle (which is not right angled) such as its angles, and sides with some information already given. We are going to prove this theorem right: The Law of SinesThe Law of Sines says that to find the value of an angle or side of a triangle (with either one given), we can calculate the other angle/side by using this formula: sin ß / B = sin α / A
The Law of CosinesThe Law of Cosines says that to find the value of any side with a given angle and other two sides, we use this formula: a^2 = b^2 + c^2 -2bc cos θ. Good luck!!
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Lets breeze through some SAT Math tips which really helped me score in the high band for the SAT Math Section. I might be doing a series on this. Let's start with Math without Calculator: MATH WITHOUT CALCULATOR 1. Right Angle Trigonometry Problems ~ a lot of the SAT Math problems!!
2. Data Analysis (Standard Deviation)
EXTRA TIPS FOR WITHOUT CALC SECTION
Good luck,
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