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Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+.... (a) Find (i) S4 (ii) S100 Answer: 10 100 How do you work it out though?
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Aug 17, 2021
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Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+....
(a)
Find
(i)
S4
(ii) S100
Answer: 10 100
How do you work it out though?
Mathematics
high-school
Isius
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i) 20
ii) 19900
formula : sn = n/2[2a+(n-1)d ]
Il Vic
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Aug 22, 2021
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Il Vic
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