Definisjoner
Trig #1
Inverse Trig
Random
Special Right Triangles
100
Dette trigonometriske forholdet mellom hosliggende katet og hypotenus
cosinus
100
Hvilke typer trekanter som man kan anvende trigonometri på.
Rettvinklede trekanter
100
Hva er knappen man må trykke på kalkulatoren for å omgjøre trigonometrisk forhold til vinkel?
100
When using Trigonometry, the side length NEXT TO the angle is labeled with what abbreviation?
Adjacent
100
Find side length AB
AB = 8.40
200
Forholdet mellom motstående katet og hypotenus
sinus
200
Solvew for x.
sin 26o = 0.438
200
What is the inverse sine of (23.8/29)
sin^-1(23.8/29)=55o
200
When using Trigonometry, what formula is used to calculate the opposite side when given the Hypotenuse and an angle?
sin θ = O/H
200
35.10o
300
Forholdet mellom motstående katet og hosliggende katet.
tangens
300
Sett opp riktig formel for å løse verdien for x.
cos(37)=(hos)/(11)
300
In this right triangle
CAB, ∠A=90°. Determine ∠B to the nearest whole degree when CB=12.8 and AB=3.9.
Cos^-1 (3.9/12.8) = 72^o
300
Why is Trig a helpful form of math?
You can determine sides and angles that are not able to be measured by devices.
300
How long is y?
y = 8.67
400
den lengste siden i alle rettvinklede trekanter.
hypotenus
400
Sett opp riktig formel for å finne verdien av x
tan(54)=x/5
400
What angle does the rocket have to be launched at to reach the rocket base 300 km above Earth?
tan θ=300/90
θ=tan^-1(300/90)
θ=73^o
400
What do you call a researcher who is good at trigonometry?
A SINETIST
400
How long is the opposite side of a right angled triangle if the reference angle is 50 degrees and the hypotenuse is 14cm? (2d.p)
10.72cm
500
Formelen man bruker for å løse likningen for den ukjente vinkelen.
invers sinus, invers cosinus, inverse tangens
500
Finn et uttrykk for x = ...
x=sin(28)*50m
500
In right triangle ADC, ∠D=90° and AD=5.6, AC=8.4. How big is the angle ∠ACD, rounded to one decimal place?
sin^-1(5.6/8.4) = 41.8 degrees
500
Find BOTH missing angles and the missing side.
Angle Z is the right angle.
Missing side = 29 cm or 28.777cm if you used trig.
Angle X = 44 degrees
Angle Y = 46 degrees
500
Which line is the working out error on?
cos(theta)=A/H
cos(45)=x/4.24
x=4.24/cos(45)
x=3
Line 3
Should be
x=4.24*cos(45)