Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Exact value of trigonometric funtions?
Find the exact value of the six trigonometric functions of 45*
SIN(45*)
COS(45*)
TAN(45*)
CSC (45*)
SEC(45*)
COT(45*)
4 Answers
- 1 decade agoFavorite Answer
sin 45 = 1 / sqrt(2)
cos 45 = 1 / sqrt(2)
tan 45 = 1
csc 45 = sqrt(2)
sec 45 = sqrt(2)
cot 45 = 1
- Anonymous1 decade ago
You can find all of these by drawing a triangle with angles 90deg, 45deg, 45deg.
Let the two equal sides each be 1 unit long.
The hypotenuse is then sqrt(2) from Pythagoras' Theorem.
sin(45) = cos(45) = 1 / sqrt(2) = sqrt(2) / 2.
tan(45) = cot(45) = 1
cosec(45) = sec(45) = sqrt(2).
- 1 decade ago
SIN(45*)
sqrt(2)/2
COS(45*)
sqrt(2)/2
TAN(45*)
1
CSC (45*)
2 sqrt(2)/2
SEC(45*)
2 sqrt(2)/2
COT(45*)
1
