Page 90 - 1300 Math Formulas
P. 90
Chapter 4
Trigonometry
=
=
=
=
^åÖäÉëW=α I=β =
oÉ~ä=åìãÄÉêë=EÅççêÇáå~íÉë=çÑ=~=éçáåíFW=ñI=ó==
tÜçäÉ=åìãÄÉêW=â=
=
=
4.1 Radian and Degree Measures of Angles
=
NUM°
362. N ê~Ç = ≈ RT° NT D QR ? =
π
=
π
363. N = ê~Ç ≈ K M MNTQRP ê~Ç =
°
NUM
=
π
364. N D= ê~Ç ≈ K M MMMOVN ê~Ç =
NUM⋅ SM
=
π
365. N ?= ê~Ç ≈ K M MMMMMR ê~Ç =
NUM⋅ PSMM
=
366. = ^åÖäÉ= M= PM= QR= SM= VM= NUM= OTM= PSM=
= EÇÉÖêÉÉëF=
^åÖäÉ= π π π π Pπ
π
Eê~Çá~åëF= M= = = = = π= = O=
= S Q P O O
=
=
80
