1, sin (x + y) = sinx . cosy + cosx . siny

2, sin (x y) = sinx . cosy cosx . siny

3, cos (x + y) = cosx . cosy sinx . siny

4, cos (x y) = cosx . cosy + sinx . siny

sinx sin (x + k2?)

tgx = = = tg (x + k2?)

cosx cos (x + k2?)

cosx cos (x + k2?)

cotg = = = cotg (x + k2?)

sinx sin (x + k2?)

sin ( x) = sinx

cos ( x) = cosx

tg ( x) = tgx

cotg ( x) = cotgx

tgx . cotgx = 1

cos^{2}x + sin^{2}x
= 1

**sínusová
veta **

a b c

= =

sin ? sin ? sin ?

**kosínusová
veta**

a^{2} = b^{2}
+ c^{2} 2bc . cos ?

b^{2 }= a^{ 2 }+
c^{2} 2ac . cos ?

sin2x = 2sinx . cosx

cos2x = cos^{2}x
sin^{2}x

Projekt hostuje Slovaknet.

Ubytovanie | Kϊpele | Austrαlia | Prαca v Kanade | Catering | Last minute dovolenka

Ubytovanie | Kϊpele | Austrαlia | Prαca v Kanade | Catering | Last minute dovolenka