Solution 4.3:4a
From Förberedande kurs i matematik 1
(Difference between revisions)
m (Lösning 4.3:4a moved to Solution 4.3:4a: Robot: moved page) |
|||
Line 1: | Line 1: | ||
- | {{ | + | The Pythagorean identity |
- | + | <math>\cos ^{2}v+\sin ^{2}v=1</math> | |
- | {{ | + | gives us directly that |
+ | |||
+ | |||
+ | <math>\sin ^{2}v=1-\cos ^{2}v=1-b^{2}</math> |
Revision as of 11:37, 29 September 2008
The Pythagorean identity \displaystyle \cos ^{2}v+\sin ^{2}v=1 gives us directly that
\displaystyle \sin ^{2}v=1-\cos ^{2}v=1-b^{2}