Page 249 - Math Grade 11 (Advance)

PROEUS DARA

7. n. P(A) = 0.15 , P(B/ A) = 0.15 , P(B/A) = 0.04

2. P(B) = P(B n A)+ P(B n A) = 0.0225 + 0.034 = 0.0565

0 0225
P(A/B) = · = 0398
0.0565 .
8. n. P(B) = 0.025 + 0.675 = 0.7

0 675
2. P(D/B) = · = 0.9642
0.7
l=l. n(B) = 70

n(iS),. 68

26 529.
2. n. 35 + 701 2. l=l.

3. - 11 - 2i st~ 625- 336i X = 3

w( 4n .. 4n)
+tsm
6. n. cos·T+tsm 2. J2( cos 5n .. 5n)
3 4 4
2J2( cos~+ isin~) ( n .. n)
l=l. ~- 4 cos + 1sm 6
6
'
s. n. z = 1 + iJ3 2. Z=-2J2+i2J2

l=l. z = -i ill. z = -3J3-3i

1 4
9. n. 2. lzwl =-
lzl = COS<X COS <X
n (z)
2n
l=l. arg(z) = - a ill. arg w = 5 -a
2
10. n. z = cosG- a) + isinG -a)

lln .. lln)
,
13. z = 4 J2( cosl:f + 1sm
12

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