Trigonometry

The cotangent function is the reciprocal of the tangent function, so cot(115 degrees) is equivalent to 1/tan(115 degrees). Since tan(115 degrees) is equivalent to -tan(65 degrees) due to the periodicity of the tangent function, cot(115 degrees) simplifies to -tan(65 degrees), which corresponds to option A.

Sin30 degrees is 0.50000

The circumference of a 12-inch round circle in pi is: 12pi

is called the 'origin' , and has the co-ordinates of (0,0)

Well, using a^2 + b^2 = c^2, where a and b are the legs and c is the hypotenuse, you need to square 39 and 36. Then your equation should look like a^2 +1296 = 1521, then solve for a^2, getting the variable by itself, so you have a^2 = 225. Then take the square root of both sides leaving you with a= 15. So, the ladder must be placed 15 feet from the base of the house.

tan a=1/2 tan b=1/3 find tan (a-b)

Well, darling, to find the area of a triangle with those side lengths, you can use Heron's formula. So, plug in those side lengths (a=8, b=11, c=15) into the formula, calculate the semi-perimeter, and then solve for the area. Voilà, you've got yourself the triangle's area.

Tangent of theta = Y/X, or opposite the angle/the adjacent of angle. So;

Tangent of 42 degrees = height/80'

80' tan 42 = height

= 72 feet ( you might want to subtract that 4.5 foot eye height )

A three-sided figure with two equal sides is called an isosceles triangle. In an isosceles triangle, two sides are of equal length, while the third side may be a different length. The angles opposite the equal sides are also equal in measure. Isosceles triangles exhibit unique properties in geometry, such as having a line of symmetry along the axis of the unequal side.

it is POSITIVE because tangent is said to be as OPPOSITE all over ADJACENT side of the triangle. since the opposite and adjacent sides of theta in Quadrant 3 are both negative, the quotient of two negative integers is POSITIVE. in third quadrant tanƟ= -O/-A

Well, let's turn that decimal into a mixed number, shall we? 1.99 is the same as 1 whole and 99 hundredths. So, our mixed number is 1 99/100. Just a happy little conversion to brighten up your day!

Oh, dude, another name for a square-based pyramid is a "pyramid with a square base." Like, it's literally in the name. It's not rocket science, just a pyramid chillin' on a square. So, yeah, square-based pyramid, that's the vibe.

To perform matrix calculations on a Casio fx-991MS calculator, you first need to enter the matrix into the calculator using the matrix mode. Press the "Mode" button, then select "Matrix" mode by pressing the corresponding number key. Next, input the dimensions of the matrix (rows and columns) and enter the values of the matrix. Once the matrix is entered, you can perform operations such as addition, subtraction, multiplication, and finding the determinant or inverse using the matrix menu options.

To solve the equation 2cos(x) + cos(x) - 1 = 0, we first combine like terms to get 3cos(x) - 1 = 0. Then, we isolate the cosine term by adding 1 to both sides to get 3cos(x) = 1. Finally, we divide by 3 to solve for cos(x), which gives cos(x) = 1/3. Therefore, x = arccos(1/3) or approximately 70.53 degrees.

In mathematics, symmetry refers to a property where an object remains unchanged when it undergoes a transformation. For a number to be symmetrical, it must read the same forwards and backwards. For example, the number 121 is symmetrical because it reads the same forwards and backwards. However, the number 123 is not symmetrical as it reads differently when reversed.

15*cos(60) = 7.5

7.5 m

Oh, dude, let me break it down for you. So, we've got this quadrilateral ABCD with all these angles, right? And we need to find angle AEB, where E is the intersection point of AC and BD. Like, just do a little math magic with those angles, and you'll see that angle AEB is 80 degrees. Easy peasy, lemon squeezy!

A tetragon (a polygon with four sides) is more commonly known as a quadrilateral.

Do you mean

Sin(pi/7) or {Sin(pi)} / 7

Note the position of the '7' be it inside or outside the Sine Function.

Clarity is needed, in the position of the '7'.

However,

Maker sure you calculator is in 'Radian' mode.

Sin(pi/7) =

Sin(0.44879895...)

=0.0078329....

or

{Sin(pi)}/7 = 0.054803665.../7

= 0.007829095021....

Note the two different answers.

Theta is the classical Greek letter. It looks like an 'O', with an horizontal line through it.

It is used as an angular symbol in Trigonometry.

e.g.

Sin (Theta) = 0.5

So inverting Theta = 30 degrees.

It is down to trigonometry. You have two parts of a triangle, so you are looking for the length of the last line. As the man turned right, there will be a right angle in the triangle. As we have two sides, the 12m and 5m, using Pythagoras theorem we can work out the length of the last side. The square of the hypotenuse is equal to the square of the other two sides. 12 x 12 = 144. 5 x 5 = 25. 144 + 25 = 169. 13 x 13 = 169. So the length of the other side is 13.

'Axes'.

Linear ; x- axis

2- dimensional ; x-axis and y-axid.

3-dimensional ; x-axis, y-axis, and z-axis.

For all triangles, right-angled included, it is the multiplication of the base length times the perpendicular height x half.

Algebraically

A = 0.5bh

For a right-angled triangle it is the base length times to length of right angled (perpendicular) line times one half.

the origin and it has the coordinates of (0,0)

In geometry (math) a 3 -sided linear figure is called a triangle. The lines connect and the resulting angles always equal to a total of 180º. There are 3 types of triangles and this is one:

If you type the word "triangle" into your browser or http://answers.com search box you will get detailed information and some information about more triangles. GOOD LUCK !!!