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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
Geometry was developed by ancient civilizations in Egypt, Mesopotamia, and the Indus Valley, among others. It arose out of the need to calculate measurements for purposes of construction, surveying, and navigation.
How o find hypodenuse length of a right angle?
Use Pythagoras' theorem of a2+b2 = c2 whereas a and b are the sides of a right angle triangle with c being its hypotenuse or longest side.
tan(sec-1(5/2))
Start with sec-1(5/2), which is the same as cos-1(2/5). So there is a right triangle, where the side adjacent the angle is 2, and the hypotenuse is 5. Solve for the opposite side: sqrt(5² - 2²) = sqrt(21).
Tangent is opposite over adjacent, so the answer is sqrt(21)/2
What is the exact value of 6009252126?
Six billion, nine million, two hundred fifty-two thousand, one hundered and twenty-six. It is inappropriate to erase other's answers if you are improving an answer. i think he wanted to put a decimal in front of the answer. If that is so it is the square root of 13/6. I used a trial and error method to find the answer.
In cartesian coordinate system what is the coordinates?
The coordinates of a point in the n-space are ordered sets of n numbers, each of which measures the distance of the point from the origin along the n-axes in a given order.
Do plants need sugar in fertilizers?
No, plants can make their own sugars by photosynthesis. The purpose of fertilizers is to provide elements such as nitrogen which the plant cannot take in from air or water.
There is no simple answer. The number of simulations that you can do depends on the cost - in terms of time and resources - that each simulation takes.
Whether or not the data are meaningful depends on the variability of the outcomes.
How do you solve complicated trigonometry questions?
You make them less complicated by using trigonometric relationships and identities, and then solve the less complicated questions.
It is impossible for the shadow of a 6' man to be 3' long in Norway. In order for this to happen, the elevation of the Sun would have to be 63 degrees. Since Norway is a minimum of 57 degrees latitude, even at the summer solstice (+22.5) the elevation of the Sun would only be 53.5. The question has no answer. Please restate the question.
Why do people say that chemistry is very mathematical if it has more concepts than math?
It is probably to emphasise the fact that chemistry is not a purely practical subject. There can be a misconception that chemistry is mostly mixing chemicals and seeing what happens. However chemists use mathematics routinely as part of their science. However this is not unique to chemistry. All science is very mathematical.
It is a set of mathematical operations which have to be carried out, using some measures of an object and possibly mathematical constants, to find the total amount of space which an object occupies.
Why is the side opposite of the right triangle called a hypotenuse?
Because that is the accepted convention. The hypotenuse is the longest side of a right triangle, the side opposite the right angle. The term comes from the Greek, hypoteinousa, meaning "to stretch", and was used by Plato in the Timeus 54d and by other ancient authors. For more information, please see the Related Link below.
How calculte area of hexagon if the height have 2 units?
This must be a regular hexagon. Draw a height from the lower left vertex to the upper left vertex (2 units). Draw a horizontal diagonal thru the hexagon "left to right". These lines create 2 triangles on the left. A hexagon has angles of 60 degrees. Because the two extra lines are perpendicular so this means the triangles are 30-60-90 triangles. The altitude of these triangles is 1/2 the height of the hexagon, so these 1re 1 unit. 30-60-90 triangles have sides in the ratio of 1 to sq rt 3 to 2, since our side opposite the 60 degree angle is 1 unit, set up a proportion and the hypotenuse of the triangle is 2 (sq rt 3)/3. The other side is (sq rt 3)/3.
Now draw one triangle from the center of the hexagon to any 2 adjacent vertices. This creates an equilateral triangle. Its sides are all 2 (sq rt 3)/3. Draw an altitude, which will cut that triangle into another 30-60-90 triangle. The altitude of this triangle is 1 unit (by proportion or the Pythagorean theorem). So the area of this one triangle is 1/2 bh = 1/2 (2(sq rt 3)/3)(1) = (sq rt 3)/3.
Since there are 6 of these triangles, multiply by 6 to get the total area of the hexagon. (sq rt 3)/3 x 6 = 2(sq rt 3) answer.
How to form various types of triangle with perimeter 360m?
One possible solution which will require a really long rope and two people.Tie one end of the rope to a post. Make a loop of 360 m and tie the other end to the same post. Then one person should hold the rope and stand a short distance, x m, from the post. The other person should hold the rope so that its tight and walk in an arc on one side of the line formed by the post and the other person. This will form various triangles with base x metres and perimeter 360 m. Then the first person to take up another position a little further from the post. When the second person moves along the arc, he will form another family of triangles. In theory, the first person can make infinitesimally small movements away from the post and so this will generate infinitely many possible triangles.
Why dont you have buttons for cotangent secant cosecant?
You don't have buttons for cotangent, secant, and cosecant because you don't need them. Just invert. Cotangent is 1 over tangent, secant is 1 over sine, and cosecant is 1 over cosine.
