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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
Three kinds of relations in math?
There are four kinds of relations in ordered pairs:
one to one (each x value is unique and has a unique y value associated with it)
one to many (each x value has multiple possible y values)
many to one (each y value has multiple possible x values)
many to many (x and y values can be repeated and are not unique)
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What is a numerical value for x if cos2x plus 2sinx-2 equals 0?
cos2x + 2sinx - 2 = 0
(1-2sin2x)+2sinx-2=0
-(2sin2x-2sinx+1)=0
-2sinx(sinx+1)=0
-2sinx=0 , sinx+1=0
sinx=0 , sinx=1
x= 0(pi) , pi/2 , pi
What are applications of trigonometry in daily life?
Applications of Trigonometry in Real life
- Trigonometry is commonly used in finding the height of towers and mountains.
- It is used in navigation to find the distance of the shore from a point in the sea.
- It is used in oceanography in calculating the height of tides in oceans
- It is used in finding the distance between celestial bodies
- The sine and cosine functions are fundamental to the theory of periodic functions such as those that describe sound and light waves.
- Architects use trigonometry to calculate structural load, roof slopes, ground surfaces and many other aspects, including sun shading and light angles.
The various fields in which trigonometry is used are acoustics, architecture, astronomy (and hence navigation, on the oceans, in aircraft, and in space; in this connection, see great circle distance), biology, cartography, chemistry, civil engineering, computer graphics, geophysics, crystallography, economics (in particular in analysis of financial markets), electrical engineering, electronics, land surveying and geodesy, many physical sciences, mechanical engineering, machining, medical imaging (CAT scans and ultrasound), meteorology, music theory, number theory (including cryptography), oceanography, optics, pharmacology, phonetics, probability theory, psychology, seismology, statistics, and visual perception, education.
Tan2 θ - tan θ equals 0.for θ ...0 less than or equal to θ less than 2 pi...?
theta = 0 is the only solution.
Normally your maths teacher or tutor should teach you all the key processes needed to pass your maths exam.
After all the topics have been covered one of the most effective ways to practise for an exam is by completing past papers. This give you an idea of what the exam will look like and which topics are most likely to come up.
After attempting a past paper make a list of all the questions you got wrong. The topics you're finding difficult can either be taken back to your teacher for further explaination or use the internet to research how to solve the problems.
Get problems online or from a teacher/other adult, or make them up yourself, and try to solve them. You can also ask a teacher to tutor you if you need help in math.
What is deference between plane trigonometry and spherical trigonometry?
Plane assumes a flat surface, where the angles of a triangle always add up to exactly 180 degrees. Spherical assumes a curved surface (such as the surface of the Earth, where the angles of a triangle add up to more than 180.
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.
Real life example of right angle?
Its like the Golden Gate Bridge or a staircase I have the same toype of homework and I can't find the pictures to this but think of a right angle and match it to a real life thing.
Where can one find a list of trigonometric identities?
Trigonometric identities involve certain functions of one or more angles. These identities are useful whenever expressions involving trigonometric functions need to be simplified.
What is the wild tangent redeem unlock code?
This is a code that you use to redeem full access to a game and it becomes yours to play forever.
How was it determined that the tangent of pi divided by 4 is 1?
As tan(x)=sin(x)/cos(x)
and sin(pi/4) = cos(pi/4) (= sqrt(2)/2)
then tan(pi/4) = 1
How do you find the angles of a triangle only given the angle 38?
This is not sufficient information. The angles of a triangle add up to 180o and so all that can be deduced is that the remaining angles add up to 180o-38o which is 142o.
What is the correct trig function to establish height of object?
There is no single answer since the correct ratio depends on what information you do have.
The angle of projection of a projectile for which the horizontal range and maximum height are equal?
45 degrees.
In circle P BC equals 24 what is the length of arc ABC?
The length of the arc of ABC is 22pi. You can get this answer by completing this equation 330/360*24pi, which will give you 22pi.
How do you find the other sides of a right angled isosceles triangle when you know the hypotenuse?
Square the hypotenuse's length, halve this number and then square root the remaining number. This is the length of the other two sides.
Explanation:
Since this is a right angled isosceles triangle, the two other sides must be equal in length.
Pythagoras theorem a2+b2=c2 (c is the hypotenuse).
To get c2 we must square the hypotenuse.
Since the two other sides are equal in length, a and b must be the same.
Therefore a2 and b2 are both halves of c2. Halving c2 will give you both a2 and b2.
Now, we just sqaure root a2 or b2 to get the length of these sides.
What does the BFA Degree mean?
Bachelor of Fine Arts Degree Bachelor of Fine Arts
Bachelor of Fine Arts
Section 1 is (270), section 2 is (x+150) and section 3 is (x) (270)+(x+150)+(x) = 800 Remove the brackets and rearrange the equation so that the letters are on the LHS and the integers are on the RHS remembering to change the + signs into - signs where necessary: x+x = 800-270-150 Simplified to: 2x = 380 Divide both sides of the equation by 2 to find the value of x: x = 190 Therefore: Section 1 has 270 spots Section 2 has 340 spots Section 3 has 190 spots
It means for any right angle triangle:-
sine = opposte/hypotenuse
cosine = adjacent/hypotenuse
tangent = opposite/adjacent
How do you find the constant of proportionality of y equals -2 when x equals 2?
The Answers community requires more information for this question. Please edit your question to include more context. The answer will depend on the nature of proportionality between the two variables: is y directly proportional to x, or some power of x, is it inversely proportional?.
