Page 111 - 1300 Math Formulas

CHAPTER 4. TRIGONOMETRY

469. fåîÉêëÉ=`çí~åÖÉåí=cìåÅíáçå==
≤
−
ó = ~êÅ Åçí ñ I= ∞ ñ ≤ ∞ I= < ~êÅ Åçí ñ < π K=
M

===== =

Figure 69.
=
470. fåîÉêëÉ=pÉÅ~åí=cìåÅíáçå==
 π   π 
ó = ~êÅëÉÅ I ñ = ñ∈ ( ∞− I − N ][ IN ∞∪ ) ~êÅI ëÉÅ ñ∈  I M O  ∪  O I π  K





=

Figure 70.

101