John Rhodes, Math Teacher at Senioritis.io

unit matrix a square matrix where the leading diagonal entries are 1. A unit matrix is a square matrix in which all the elements of the diagonal...

sin 45° √2/ 2 sin 45° is an exact value that can be calculated without using a calculator. To find sin 45°, we start by drawing a...

sin 60° √3/ 2 sin 60° is equal to 0.86602540378. To understand how this value is obtained, it is important to know that sine is a trigonometric...

cos 30° √3/ 2 cos 30° is equal to √3/2 or approximately 0.866. To arrive at this answer, we can use the fact that cosine is the...

cos 45° √2/ 2 cos 45° = √2/2 This can be found using the unit circle or by using the cosine formula for a 45-45-90 triangle. In...

tan 30° √3/ 3 The value of tan 30° is 0.577. To determine this value, we need to use the trigonometric ratio of tangent. In a right...

tan 45° 1 The value of tan 45° is 1. This can be derived from the fact that tangent is the ratio of the opposite side to...

tan 60° √3 The value of the tangent of 60 degrees can be determined using the following formula: tan(x) = sin(x) / cos(x) where x is the...