Therefore, sin 90 degree equals to the fractional value of 1/ 1. Some other trigonometric sine identities are as follows: /sin x=/frac{1}{/csc x} /sin^{2}x+/cos ^{2}x=1.
Q. How do you find the exact value of cos 195 degrees?
Find the exact value of cos195 degrees. The key is to write 195 degrees as the sum or difference of two numbers whose sine and cosine are known. cos195 = cos(45 + 150). NOTE: 45 + 150 = 195.
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Q. Which set of steps can be used to prove the sine sum identity?
Use the supplementary relationship between sine and cosine to rewrite sin(x + y) as Cosine (StartFraction pi over 2 EndFraction minus (x + y) ). Apply the cosine sum identity. Then simplify using sin(–y) = –sin(y) and cos(–y) = cos(y). Use the supplementary relationship between sine and cosine to rewrite sin(x + y) as.
Q. What is an exact value?
Definition. Exact value is where you cannot estimate the value you must be precise, eg; you can’t estimate something as being around about 5 centimetres; no you need an exact value such as 5.62. Exact value.
Q. How do you prove cos 30?
Cos 30° = √3/2 Therefore, the exact value of cos 30 degrees is written as 0.8660 approx. √3/2 is the value of Cos 30° which is a trigonometric ratio or trigonometric function of a particular angle.
Q. What does Cos stand for?
COS
| Acronym | Definition |
|---|---|
| COS | Cost Of Sales |
| COS | Class Of Service |
| COS | Collection of Style (fashion line) |
| COS | Colorado Springs (Amtrak station code; Colorado Springs, CO) |
Q. What is a COS in a company?
In accounting, the acronym COS could indicate either cost of sales or cost of services. The income statements of many retailers and manufacturers use the phrase cost of sales instead of cost of goods sold. The income statements of some service companies will use COS to mean the cost of services.
Q. What is the long form of Cos?
COS – Chief Of Security. COS – Cosmic Origins Spectrograph. COS – Console Operating System. COS – Co-orbiting Satellite. COS – Criminal Organization System.
