Page 13 - Math Grade 11 (Advance)

PROEUS DARA

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n. 2: (4k + 3)
k =I

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~. 2: (k+3)k
k =I

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n. 2: ( 4k + 3) = 2: 4k + 2: 3 = 4 2: k + 2: 3
k=l k=l k=l k=l k=l

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2
2
~. 2(k+3)k = 2(k +3k) = ~k +3~k
k=l k=l k=l k=l

= J0 X 7 X 41 + 3 X 21 X 10 = 2870 + 630 = 3500
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f:HU1Sl n. ~(3k+l)
k = 1

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?1. ~ (4k-3)
k=4
n
li5. ~(3+k) 2

k=l
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i:l. ~ k(k+ 1)
k =I

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