Trigonometry

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 !!!

-3 + ln x = 5

Add '3' to boths sides

Hence ln x = 8

'ln' is logarithms to the natural base , which is 2.718281.... = 'e'

Hence log(e) x = 8

x = e^(8)

x = 2.71828...^8) = 2980.95798...

NB One the calculator you will find two buttons, viz. 'log' & 'ln'.

Log is logarithsm to base '10'

Ln is logarithms to base 'e' = 2.71828.... ( The exponential .

A 3d shape with 5 faces can be a square pyramid

Each bars height represents a certain number. Read all these heights and add the numbers together. Then take each individual bars value divide that by the total and multiply by 100 to get percentages.

The sine graph and the cosine graph are identical in shape, with the cosine graph shifted to the left by pi / 2, i.e. the sine starts at (x=0,y=0) and proceeds up with an initial slope of one, and the cosine starts at (x=0,y=1), and proceeds down with an initial slope of zero.

Coordinate planes are typically labeled with Roman numerals to distinguish between the horizontal axis (X-axis) and the vertical axis (Y-axis). Roman numerals are used as a traditional and standardized way to label the axes in mathematics to avoid confusion. This labeling convention helps to clearly identify the axes and their corresponding values when graphing points or plotting equations on the coordinate plane.

1. A cosine can be calculated as the length of the adjacent side divided by the length of the hypotenuse of a right angled triangle. The tangent measure is the length of the opposite side divided by the length of the adjacent side. As the cosx = 0.6 = 3/5 then we are dealing with a right angled triangle where the adjacent side measures 3 units and the hypotenuse 5 units - thus the opposite side measures 4 units as by Pythagoras' Theorem, 5² = 3² + 4². Then tanx = 4/3.

2. sin²x+cos²x=1.

sin² x=1-0.6²=0.64 and sin x=0.8.

tan x=sin x/cos x=0.8/0.6=8/6=4/3.

Well, darling, the value of tan(58.5 degrees) is approximately 1.612. So, if you're looking to impress someone with your trigonometry skills, go ahead and drop that little nugget of knowledge on them. Just don't expect them to be as impressed as they should be.