Page 243 - Math Grade 11 (Advance)

PROEUS DARA

3. n. 2.(sinx+~)<sinx-8)(sinx-1) = 0

X = ~ + 2k1t X = ~ + 2k1t
2 6

7. n. y=2+ 1t ~~ X -- S1t + 2k1t
1t 2k
'::!.
51t 1t
y = - + 2k1t y =- + 2k1t
6 2
x = 5n + k1t
j 1t kn (k E Z)
2. 24 2
?1.
y = 24 + 2

9. A;C=B tt:llti5A+B+C=n=>3B=n=>B=~
.A .n ·c 3 J3
Sill + sm- + Sill = - + -
3 2 2

. A . C 3
sm + sm =
2
1t A-C 3 1t
2cos-cos-- = - = cos-
6 2 2 6
1t ·~ 21t
A-C=- ~wruA+C=n-B=-
3 3
1t 21t 1t
2A = - + - = 1t => A = -
3 3 2

= 1t- (A+ B) = 1t- (~ + ~) =

i::H.HS8 A = ~ B = ~ C = ~
u 2 ' 3 ' 6

[-1 :;J = m
2. n. ;] 2. GJ = [~4J ?1.
-2

7 CJ
3. f(3u-2v) = 4
?

6. [ 5 -2]
-3 1
238