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Let Sn be the sum of the first n terms of the arithmetic series 2+4+6+... . Find (i) S4 ; (ii) S100 .

(i) S4=2+4+6+8=20

(ii)S100= 2+4+...+200=2(1+2+...+100)=2(100+1)*(100/2)=10100

SL
Answered by Salomon L. Maths tutor
2252 Views

Determine the integral: ∫5x^4dx

x^5+C

SL
Answered by Salomon L. Maths tutor
3667 Views

Outline two factors that explain the Bystander Effect.

Firstly, the Bystander Effect is caused by pluralistic ignorance, a form of misinformed information processing. Bystanders try to figure out how to interpret ambiguous events by looking at the reactions o...

DD
Answered by Davita D. Psychology tutor
8621 Views

How to know the gender to a noun?

My first answer would be that it depends and so learning by heart and reading & listening in french makes you learn slowly if the noun is feminine or masculine. Also visually remembering the nouns end...

BM
Answered by Boréa M. French tutor
1866 Views

Evaluate the effectiveness of monetary policy to increase AD during a recession

Monetary policy encompasses the policies the central bank uses to influence interest rates in order to change AD. A recession is when there is an economic contraction where real GDP falls for 2 consecutiv...

TH
Answered by Tanya H. Economics tutor
11100 Views

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