Все необходимые формулы по математике (Шпаргалка)

   

           

                                                           

                                                                                                                                                                         

                                                                                                                                                           

n

R

r

n=3

R=a/Ö3

r=a/(2Ö3)

n=4

R=a/Ö2

r=a/2

n=6

R=a

r=aÖ3/2

a/2sin(180/n)

a/2tg(180/n)

cos

sin

tg

ctg

0

30

45

60

90

180

270

360

0

1/2

Ö2/2

Ö3/2

1

0

-1

0

1

Ö3/2

Ö2/2

1/2

0

-1

0

1

0

Ö3/3

1

Ö3

–

0

–

0

–

Ö3

1

Ö3/3

0

–

0

–