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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
How is law of sines used trigonometry?
The 3 little division "sums" that are the Sine and its brother ratios, Cosine and Tangent, given in any basic right-angled triangle, form the basis for the entire, vast field of Trigonometry and its uses, going far beyond simple Plane Geometry into such things as Harmonic Analysis (Sine functions of amplitude with respect to time), the Laws of Electricity (starting with the phase angle between Volts and Current in a.c. circuits, etc.), and so on.
The cosine of 2pi is 1. In fact, for every integer N, the cosine of 2 N pi is 1.
Famous mathematical problems featuring pie?
Type your answer here.Area = (pi)radius2
Circumference = (pi)diameter
The cosmological constant
Heisenberg's uncertainty principle
Einstein's field equation of general relativity
Coulomb's law for the electric force, describing the force between two electric charges (q1 and q2) separated by distance r
Magnetic permeability of free space
Kepler's third law constant, relating the orbital period (P) and the semimajor axis (a) to the masses (M and m) of two co-orbiting bodies
What is the domain and range of a quadratic function?
The domain and range can be the whole of the real numbers, or some subsets of these sets.
How do you find quadratic equation with only 2 solutions?
If the discriminant of the quadratic equation is equal or greater than zero it will have 2 solutions if it is less than zero then there are no solutions.
42.0
Properties:
-Composite
-Square-Free
-Semi-Perfect
-Practical
-Abundant
-Highly Abundant
Factors: 1, 2, 3, 6, 7, 14, 21, 42.
Prime Factorization: 2 x 3 x 7
Number of factors: 8
Sum of factors: 96.0
Sigma Ratio: 2.2857142857142856
What sort of triangle has 3 equal sides and 3 equal angels?
the only triangle that has 3 equal sides and 3 equal angles is the EQUILATERAL TRIANGLE.
What is a good grade in trigonometry?
It is all about personal preferrence and what type of college you plan to attend. As long as you work hard, and give it your all, you should get a good grade. Colleges will look at your overall GPA, but if you truly a major course such as trigonometry, your chances may be hurt.
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It depends on the course and what your definition of "good" is. For a typical school course in the United States, strive for a 90% (A) or better.
How do you convert a sine curve function to a cosine curve function?
One way is to shift it to the left by a quarter of the period.
What are the application of eigen vectors and eigen values in signal and system?
In signals eigen values and eigen vectors are used in finding directions.... Signals are based on eigen vectors
How do you slove for a spherical triangle?
A spherical triangle is not a question or a puzzle that you can solve, or even slove! You need to specify what information you have and what you wish to solve for: angles, lengths of sides, perimeter, area and so on.
Prove that secB - cosB equals tanBsinB?
Try to write everything in terms of sines and cosines:
1 / cos B - cos B = (sin B / cos B) sin B
1 / cos B - cos B = sin2B / cos B
Multiply by the common denominator, cos B:
1 - cos2B = sin2B
Use the pithagorean identity on the left side:
sin2B + cos2B - cos2B = sin2B
sin2B = sin2B
Why is the sum of triangles interior angle always 180 degree?
In a regular triangle. (isosceles, right, or acute), the interior angles always add up to 180 degrees because in simplest terms, a triangle is basically a line that has been folded into three sections and every line is equivalent to 180 degrees. However... there are technically triangles that have interior angles that do not add up to 180 degrees! A pseudosphere is a triangle that is essentially "drawn" on a sphere resulting in each of the sides being curved. The interior angles of a pseudosphere actually add up to more than 180 degrees.
If you have an aptitude for mathematics, it will probably be easy for you. If you don't, it will be more difficult for you but it doesn't have to be hard. With time, effort and the help of someone that has a good understanding of the subject matter (like a teacher) most everyone can master the fundamentals of calculus. If you are having trouble, talk with your teacher and get some extra help by coming in early, staying after school, meeting during a study hall period, etc. In my experience, the overwhelming majority of teachers are delighted to help someone that needs it and wants it.
What are the trigonometric functions for 240?
It is easiest to find these using the unit circle. Assuming you want exact values for sin, cos, and tan.
240 degrees is equal to 4[Pi]/3 radians.
cos(4[Pi]/3) and sin(4[Pi]/3) are easy to find using the unit circle,
cos(4[Pi]/3) = -1/2
sin(4[Pi]/3) = -(Sqrt[3])/2
To find tan, you will need to do a little arithmetic. We know that tan(x) = sin(x)/cos(x), so,
tan(4[Pi]/3) = sin(4[Pi]/3)/cos(4[Pi]/3)
tan(4[Pi]/3) = (-(Sqrt[3])/2) / (-1/2)
tan(4[Pi]/3) = ((Sqrt[3])/2) * (2/1)
tan(4[Pi]/3) = ((Sqrt[3])*2) / (2*1)
tan(4[Pi]/3) = (Sqrt[3]) / 1
tan(4[Pi]/3) = Sqrt[3]
Find the other 3 using reciprocal. This is just a little arithmetic and up to you. You know that cossec(x) = 1/sin(x), sec(x) = 1/cos(x) and cot(x) = cos(x)/sin(x).
The question cannot be answered since it is inconsistent. It first states that AB equals 5 cm and then AB equals 6 cm. Please check your typing and resubmit.
How many gallons of water in a 2 pipe 30' long?
There is no obvious reason why there should be any water in the pipe. Furthermore, there are no units associated with the width of the pipe, so its volume cannot be calculated.
What is reciprocal in trigonometry?
The inverse of sine (sin) is cosecant (csc). The inverse of cosine (cos) is secant (sec). The inverse of tangent (tan) is cotangent (cot).
What is allied angle in trigonometry?
Allied angles are found on transversal line that cuts through parallel lines and they add up to 180 degrees
Two shapes are congruent if they have the same shape. This includes the corresponding angles, straight and curved lines.
