Mikä on trigonometria?
Trigonometria




D
⁡
sin
⁡
x
=
cos
⁡
x

D
⁡
cos
⁡
x
=
−
sin
⁡
x

D
⁡
tan
⁡
x
=


1


cos

2


⁡
x




D
⁡
cot
⁡
x
=
−


1


sin

2


⁡
x





{\displaystyle \operatorname {D} \sin x=\cos x\qquad \operatorname {D} \cos x=-\sin x\qquad \operatorname {D} \tan x={\frac {1}{\cos ^{2}x}}\qquad \operatorname {D} \cot x=-{\frac {1}{\sin ^{2}x}}}

