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Section 1

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Law of Sines

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (6)

Section 1

(6 cards)

Law of Sines

Front

sinA/a=sinB/b=sinC/c Application Used to solve missing angles and sides SSA

Back

Angle Sum + Difference

Front

sin(A+B)= sinAcosB+cosAsinB sin(A-B)= sinAcosB-cosAsinB cos(A+B)= cosAcosB-sinAsinB cos(A-B)= cosAcosB+sinAsinB Application Find exact value when it's greater than 90

Back

Law of Cosines

Front

a^2=b^2-2bccos(A) Application Used to find a missing side or angle SAS SSS

Back

Area of a triangle

Front

A=1/2 ab sin C Applications SAS

Back

Pythagorean Theorem

Front

a²+b²=c²

Back

Pythagorean Identities

Front

sin²∅ + cos²∅ = 1 tan²∅ + 1 = sec²∅ cot²∅ + 1 = cosec²∅ cos^2x= 1- sin^2x Sin^2x= 1-cos^2x

Back