Page 78 - Math Grade 11 (Basic)
P. 78
PROEUS DARA
X
3 J2 tan Sn; = J3
cos 120° = - ~ , sin(-60°) =-!} cos n; =
4 2 6 3
I~ I !! Ill IV
sin a + + -
cos a + - +
tan a + - + -
cot a + - + -
o • o .., o ,.,rl , "' ~ ''ll .., { sinx < 0
rnUTHH!U tn't9 x ~:~JntlmUtHHlmttHlH tldln•t'l.mm~ '1
u 1 '1 & & cosx < 0
o ~ ''ll ... {cosx > 0
,
"
,.
tnntlmUt:liH1ffittHlH?Jffi11in't9t tldln• M't9fi1~ '1
'1 1 .: & tanx > 0
ts1tnh~t1~tmMl:flL" El m~l;pn.i~ (DA , oP) y
t?JQ18 cos8 = OQ , sin8 = OR '1 QbL~tfflftfltnb OPQ
1
2 2 2
ffi1:9[j~ti9rJffiRJ t?JQ18 OP = OQ + PQ
X
(1)
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