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Q4 on 2017 Edexcel C4 paper, concerns differentiation of multiple variables.

(a) Asks to differentiate an equation C: 4x2 - y3 - 4xy + 2y = 0Then use the fact that point P (-2,4), lies on C to find an expression for dy/dx Differential of form 8x - ...

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Answered by Alexander W. Maths tutor
3014 Views

7x + 6 > 1 + 2x

In order to solve this, we need to bring all of the x values to one side, we can do this by subtracting the 2x from both sides7x + 6 - 2x > 1 + 2x - 2x5x + 6 > 1 We then need to move the values onto...

MP
Answered by Mala P. Maths tutor
9496 Views

Evaluate the view that, despite criticisms, the Electoral college is by far the best method of electing the US President

The Electoral College guarantees every state 3 votes which causes small states to be over-represented. In 2004, California had 34 million people with 55 votes and Wyoming had 500,000 people with 3 votes. ...

SR
4173 Views

Historians have disagreed about the role of Soviet expansion in the origins of the Cold War. What is your view about the role of Soviet expansion in the origins of the Cold War?

The ideal that Soviet expansion caused the Cold War is the traditional view of its origin, with Orthodox historians like George F. Kennan attributing the prolonged conflict to “an expansionist Soviet Unio...

SR
Answered by Shay R. History tutor
4894 Views

Explore the writers’ presentation of their protagonists struggles with identity in The Lonely Londoners by Sam Selvon and Things Fall Apart by Chinua Achebe

Both Lewis and Okonkwo are presented as insecure regarding their masculinity. Achebe attributes the perceived “weakness” of Okonkwo’s father as the reason for Okonkwo’s insecurities regarding his masculin...

SR
3995 Views

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