Page 112 - Math Grade 11 (Basic)
P. 112
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'ho{hm sinx > 0 l::fl2tH~li5 2kJt < x < Jt + 2kJt (k E. Z)
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nflliJ tan(- ~) = -1 = tan Jt '1
4 A'
x'
~si~rn~~~Uf~mMl::flLntl=1l::fl2thLf1u M @b M'
3
iM' = Jt '1 ~1:1nHhnn.timmn~hl~
fr:Hli AM = -Jt
4' 4 n '-"
'::1 0 0 C» eJ '\:) 0
~213115u22umh mhl r:J.Hum~nm.nHH2u22~2l8
lJ IJ "'- ... 1 u IJ
tsi~rnu Mi.B ti M~' '1 r::itH28 ~hl~fil~ tanx =-I l::fl2m~ru
c:t 'A. u '31}
u
-Jt Jt
4 + kJt ::5 X < 2 + kJt , k E. Z '1
th !H9i &f!ltfla tanx:::; a tanx ~a
u
y
B
X X X
Jt+
73 1
y'
m~~9i~tl13jtr:tHLNlli51hl~fil~fr::iml::fl2dlh sinx~a , COSX<a , tanx>a , cotx<a ..... .
t1=1Ln~
u
- Hi a &r::i ill sin a = a , cos a = a , tan a =a , cot a = a
lfY7
