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Trigonometry
Trigonometry is a field of mathematics. It is the study of triangles. Trigonometry includes planar trigonometry, spherical trigonometry, finding unknown values in triangles, trigonometric functions, and trigonometric function graphs.
3,810 Questions
What is the proof that sine 60 is square root of 3 divided by 2?
You could try the fact that the altitude of an equilateral traingle is also its median so that it divides the base in half. Then Pythagoras does the rest.
What is an example of an angle bisector?
in a pie chart (divided into 4 for the sake of easiness ) the 360o circle is bisected into 4 90o angles
How the distance between two cities was measured and is measured now?
The distance between the countries can be find by travelling
196-164/2= 16
10 feet, and it is at a very dangerous angle.
Trigonometry is the study of triangles and their properties
How can you calculate the density and volume of earth give the formula?
Density = mass / volume
since earth is nearly spherical, Volume = (4/3)pi x r3
find volume, then divide this into the mass.
Which part of the angle is the vertex?
It is the angle opposite the given side of a figure (<CAB has Vertex of A because it is the tip of the moutain, which is the highest point)
What is sine in trigonometric function?
Sine of an angle (in a right triangle) is the side opposite of the angle divided by the hypotenuse.
What is the object in angle of elevation and depression?
It can be any object that is above or below the horizontal from the perspective of a viewer.
What does the abbreviation pi stand for?
pi is not an abbreviation. It is a letter of the Greek alphabet symbol that symbolises one particular ratio.
How was sine cosine and tangent created?
They are all ratios for triangles found by dividing one side of a triangle by the others.
Ex: sine=opposite side/hypotenuse.
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This is so for a right-angled triangle. Non-right-angle triangle dimensions can be calculated by trigonometry but require more complicated derived formulae.
How do you find the other side of a right triangle?
use right triangle trig... sin (angle) = opposite side/hypotunese, cos (angle) = adjacent side/hypotunese, and tan (angle) = opposite side/ adjacent side
Where is egr valve 1997 pu show diagram?
the egr valve is underneath the air filter housing. WARNING: there are multiple things to cause the EGR system to malfunction other than the valve (BPT valve, broken vaccum hose, solenoid, clogged ports, EGR temp sensor). A good diagnosis would be worth being wrong by just replacing the valve. Trust me, I used to work for a Nissan dealer
What are difference between the sides of a right angle?
The side of a triangle that is opposite to 90 degree angle is called hypotenuse. The side that is opposite to the given angle (The angle that is under calculations) is called opposite.
The side that is adjacent with the given angle is called base.
What are the two real numbers of the solution to x squared - 5x equals 24?
X2 - 5X = 24
X2 - 5X - 24 = 0
(X - 8)(X + 3)
X = 8
----------------and
X = - 3
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Where did the word frog come from?
The Word Frog Came From The Old English Word Frogga Which Means To Jump Of Course It Is Superior At Jumping
A pole casting a shadow 49 feet long with an angle of elevation of the sun of 44.8 degrees is 50 feet tall. (47.98 rounded to two places)
Tangent (theta) = opposite / adjacent
Tangent (44.9) = X / 49
X = 47.98
This does not take into account the curvature of the earth, but the error in this example is inconsequential, specifically an elevation error of about 0.015 percent.
What 2 parts does complex number have?
A complex number has a real part and imaginary part. In x+iy, the x is real and the iy is imaginary. In 3d, you can have x+iy+ik. Complex numbers produce amazing fractals.
A wise man said complex numbers are useless and to be avoided at all cost.
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