Trigonometry

There can be no equivalence.

A mil is a measure of length or linear displacement while a revolution is a measure of angular displacement. The two measure different things and, according to basic principles of dimensional analysis, any attempt at conversion from one to the other is fundamentally flawed.

you use math in everyday of your life !

0.4Y+5=1

12 feet.

An ogive is a type of graph that is used to represent the cumulative frequencies for the classes in a frequency distribution. This type of graph can also be known as a cumulative frequency graph. The cumulative frequency is the sum of the frequencies accumulated up to the upper boundary of a class in the distribution.

Y= 6/7x +6

The angles of a triangle sum to pi radians, or the angles at a point sum to 2*pi radians.

The identity for tan(theta) is sin(theta)/cos(theta).

Not specifically trigonometry, but functions in general. As a general rule, functions must be evaluated before using the results in other parts of the calcuation.

there can be more than 1 answer for some trig equations and you must use your knowledge of periodicity to get the answers.

No, it is not. To be correct, the expression requires parenthesis, which are missing.

It is not clear from the question where the point A is. This answer assumes that A is the point to the East of the hill.

Suppose the height of the hill is h metres. Suppose O is the point, on ground level, under the apex of the hill.

Then tan(39) = h/OA so that OA = h/tan(39)

Also tan(27) = h/OB so that OB = h/tan(27)

Now, triangle OAB has a right angle at A,

so by Pythagoras, OB2 = OA2 + AB2

Therefore h2/tan2(27) = h2/tan2(39) + 5002

that is h2/0.2596 = h2/0.6558 + 250000

so that 2.3269h2 = 250000

h2 = 107441

h = 327.8 metres.

Trigonometry helps surveyors determine sides of a triangle which are either inaccessible or difficult to access. Knowing the length of a single base line enables the surveyor to define the other elements of the triangle by measuring the angle to the inaccessible points from accessible points.

Consequently the heights of trees and tall buildings can be determined by knowing the distance to the base of the tree or building. Similarly locations separated by, for example, rivers or busy roads can be determined by angular measurement from positions of known distance apart on the other side of the obstruction.

Survey control marks used for the mapping of countries were in the past established by triangulation from a known base line.

These days much of the survey control is undertaken using GPS equipment which uses satellite signals to determine positions on earth. However the theory behind the location of these positions also uses trigonometry and spherical trigonometry.

Cosine(30) = sqrt(3)/2

Light switch. Almost any on/off switch you use is base 2.

Sin is a math abbreviation for sine a trigonometry function

or

It is a religions term that is the act of violating a moral law or code.

see related links for more information of both

The definition of a true compass bearing - A true bearing is measured in relation to the fixed horizontal reference plane of True North, that is using the direction towards the geographic North Pole as a reference point.

A scalar times a vector is a vector.

a corner in maths is called vertices

No, it does not.

Well, there really are no leaders in Twelve Angry Men, but those with more 'input' would include Juror #1 (Martin Balsam) the Foreman and Juror #8 (Henry Fonda) who pushes for fellow jury members to consider the possibility the Defendant may not be guilty of the crime.

Amongst the lay public of non-mathematicians and non-scientists, trigonometry is known chiefly for its application to measurement problems, yet is also often used in ways that are far more subtle, such as its place in the theory of music; still other uses are more technical, such as in number theory. The mathematical topics of Fourier series and Fourier transformsrely heavily on knowledge of trigonometric functions and find application in a number of areas, including statistics.

If tan A = 1/2, then sin A = ?

We use the Pythagorean identity 1 + cot2 A = csc2 A to find csc A, and then the reciprocal identity sin A = 1/csc A to find sin A.

tan A = 1/2 (since tan A is positive, A is in the first or the third quadrant)

cot A = 1/tan A = 1/(1/2) = 2

1 + cot2 A = csc2 A

1 + (2)2 = csc2 A

5 = csc2 A

√5 = csc A (when A is in the first quadrant)

1/√5 = sin A

√5/5 = sin A

If A is in the third quadrant, then sin A = -√5/5.

The geometric term for the number of square units needed to cover a surface is called the area of said surface.

A parabola is a single curve: it does not have separate parts.