MATH 1022 TEST 4 QUESTIONS WITH VERIFIED ACCURATE ANSWERS

MATH 1022 TEST 4 QUESTIONS WITH VERIFIED
ACCURATE ANSWERS

when to use the law of sines - Answers - SAA, ASA, and SSA

law of sines - Answers - a/sinA=b/sinB=c/sinC

when to use the law of cosines - Answers - SAS, SSS

law of cosines - Answers - c²=a²+b²=2abcosC

Area of a triangle - Answers - ½absinC

Heron's formula - Answers - s=½(a+b+c)
Area=(square root) s(s-a)(s-b)(s-c)

vertical line - Answers - rcosθ=a

horizontal line - Answers - rsinθ=a

circle - Answers - r=acosθ and r=asinθ

rose - Answers - acos(nθ) or asin(nθ)

lemniscate - Answers - r²=a²cos2θ or r²=a²sin2θ

guide to sketching limacons - Answers - |a/b|≡ 1 cardioid
|a/b|< 1 limacon with inner loop
1<|a/b|<2 limacon with a dimple
|a/b| ≥2 limacon with no inner loop and no dimple

converting equations - Answers - x=rcosθ
y=rsinθ
r²=x²+y²
tanθ=y/x

which two given pieces of info are not helpful when trying to solve right triangle -
Answers - measure of two acute angles

which of the following describes the goal of solving right triangles - Answers - the goal of
solving right triangles is to determine the measure of all angles and the length of all
sides