Trigonometric functions Solution of triangles Geometric foundations of trigonometry Trigonometric identities
100
What is Tangent?
opposite/adjacent.
100
What is the equation for law of cosines?
c^2=a^2+b^2-2ab(cos
100
What is degree?
A measurement of plane angle, representing 1/360 of a full rotation.
100
What is tangent half-angle formula?
Relates the tangent of one half of an angle to trigonometric functions of the entire angle.
200
What is cosine?
adjacent/hypotenuse.
200
What is equation for law of sines?
sin
200
What is a right angle?
Angle that bisects the angle formed by two halves of a straight line.
200
What is Pythagorean trigonometric identity?
Trigonometric identity expressing the pythagorean theorem in terms of trigonometric functions.
300
What is sine?
opposite/hypotenuse.
300
What is the equation for law of tangents?
a-b/a+b=tan[1/2(A-B)]/tan[1/2(A+B)]
300
What is hypotenuse?
Longest side of a right angled triangle.
300
What is Euler's formula?
A mathematical formula in complex analysis that establishes the deep relationship between the trigonometric functions and the complex exponential function.
400
What is the 'saying' to remember tangent, sine, and cosine?
"SOH-CAH-TOA"
400
What is trigonometry?
Branch of mathematics that studies triangles and the relationships between the lengths of their sides and the angles between those sides.
400
What is Pathagorean theorem?
A relation in Euclidean geometry among the three sides of a right angle, equation is a^2+b^2=c^2
400
What is a hypot?
A mathematical function defined to calculate the length of the hypotenuse of a right angle triangle.
500
When do you use an inverse trigonometry function?
You have two sides of a right triangle to find an angle. Use SOH-CAH-TOA to know when to you a certain inverse trig function.
500
What is Mollweide's formula?
a+b/c=cos(A-B/2)/sin(y/2) and a-b/c=sin(A-B/2)/cos(y/2)
500
What is a triangle?
One of the basic shapes in geometry: polygon with three vertices and three sides which are line segments.
500
What is the rule of marteloio?
A medieval technique of navigational computation that uses compass direction, distance and a simple trig table known as the toleta de marteloio.






Trigonometry

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