Trigonometry

Trigonometry is really useful in life. If you want to be and engineer, architect, or builder, trig. is useful. If you say that a right triangle has an angle degree of 30 degrees, and the side opposite the angle is 10 ft, you can conclude that the hypotenuse is 20 ft. Trig. also states that any right triangle with a 45 degree angle has a ratio of .707106781184562. the ratio( sine) is 1 divided by the square root of 2, of the square root of 2 divided by to. Trust me, it's easier that it sounds

To add polynomials , simply combine similar terms. Combine similar terms get the sum of the numerical coefficients and affix the same literal coefficient .

There are several topics under the broad category of trigonometry.

* Angle measurements

* Properties of angles and circles * Basic trigonometric functions and their reciprocals and co-functions * Graphs of trigonometric functions

* Trigonometric identities * Angle addition and subtraction formulas for trigonometric functions

* Double and half angle formulas for trigonometric functions * Law of sines and law of cosines * Polar and polar imaginary coordinates.

base

you wouldn't

Obviously, the pyramids have a lot to do with triangles. To find the hight, length, width, volume, angle of ascent, and surface area of the pyramids, the egyptians had to use trigonometry.

Trigonometry is used to define triangles, but it is also useful in the representation of waves. Sound engineers, obviously, use deal with sound waves. The pitch, volume, and direction of a sound wave are all deeply rooted in trigonometry.

The trigonometric functions give ratios defined by an angle. Whenever you have an angle and a side in right triangle, you can find all the other angles and sides using the six trigonometric functions and their inverses. The link below demonstrates the relationship between functions.

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For Cartesian coordinates in n-dimensional space there are n axes which are [usually] orthogonal and which meet at a single point called the origin. The coordinates of any point in the n-space are defined by ordered n-tuples whose terms refer to the distances of the point, from the origin, along each of the axes.

x, y, and z ordinates from origin 0, x and y are two dimensional ordinates ie graph axis, z adds third dimension.

eg ordinates for point are say 10, 25, 15: start at 0, right for 10(x), left for 25(y), then vertically off the paper toward you for 15(z)

both turns are right angles

sin(90°) = 1

cos(90°) = 0

tan(90°) = ∞

sec(90°) = ∞

csc(90°) = 1

cot(90°) = 0

In trigonometry, when we look at right triangles, the cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Trigonometry is the study of angles ond lengths. If you know one angle and one side length of a right traingle, you can find all the other values. If you know your distance from a tall object, and the angle made by the base of the tall object, your feet, and the top of the object, you can find the height of the object.

yes

The principal range of arc tan is an angle in the open interval (-pi/2, pi/2) radians = (-90, 90) degrees.

acute angle = less than 90o & greater than 0o right angle = 90o obtuse angle = greater than 90o & less than 180o straight angle = 180o reflex angle = greater than 180o

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1 million is 1,000,000

1 crore is 100 lakhs = 100,00,000 = 10,000,000

10 million is 1 crore

The difference between plane and spherical triangles is that plane triangles are constructed on a plane, and spherical triangles are constructed on the surface of a sphere. Let's take one example and run with it. Picture an equilateral triangle drawn on a plane. It has sides of equal length (naturally), and its interior angles are each 60 degrees (of course), and they sum to 180 degrees (like any and every other triangle). Now, let's take a sphere and construct that equilateral triangle on its surface. Picture an "equator" on a sphere, and cut that ball in half through the middle. Set the top half on a flat surface and cut it into four equal pieces. Now if you "peel up" the surface of one of those quarters and inspect that triangle, it will have three sides of equal length, and will have three right angles. Not possible on a plane, but easy as pie on the surface of a sphere. Spherical trig is the "next step up" from plane trig.

A tetrahedron.

Kami ang nag hahanap ng sagot , hindi kami ang sasagot . bwiset

a cube

comes from three Greek words; "tria"-three, "gonia"-angle, "metron"-measurement

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