CHAPTER 4. TRIGONOMETRY

473.

ñ= M=
P

P N=

P=

P

P

− −N= − P=

~êÅí~å =ñ M°= PM° QR° SM° −PM°

−QR°

=

−SM°=

~êÅÅçíñ= VM° SM° QR° PM° NOM°=

NPR°

=

NRM°=

=

=

=

4.19 Relations between Inverse

Trigonometric Functions

=

474. ~êÅëáå()−ñ =−~êÅëáåñ=

=

475. ~êÅÅçëñ
     O

~êÅëáåñ −

π

= =

=

476. 
     

     ~êÅëáåñ=~êÅÅçë N−ñOI=M≤ñ≤NK=

     
     


477. 
     

     ~êÅëáåñ=−~êÅÅçë N−ñOI=−N≤ñ≤MK=

     
     


478. O
     N ñ

ñ

~êÅëáåñ ~êÅí~å

−

= I=ñ N

O<

K=

=

479.

ñ

N ñ

~êÅëáåñ ~êÅÅçí

− O

= I=M<ñ≤NK=

=

480. −π

−

=

ñ

N ñ

~êÅëáåñ ~êÅÅçí

O

I=−N≤ñ<MK=

=

481. ~êÅÅçë()−ñ =π−~êÅÅçëñ=