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Currently, we know that:f(x) = x2To find the equation of the tangent you need the gradient and the y-value of the graph at x = 3So, you can differentiate f(x):f'(x) = 2xlet x = 3: f(x) = 9 f'(x...
Ethanoic acid is the most acidic of the three. This is because once ethanoic acid has lost a proton the negative charge can be spread over two oxygen atoms via two resonance forms. Oxygen atoms are electr...
Momentum is conserved in any collision, and for a single body is given by p = mv. The momentum before is m1v1+m2v2, and the momentum after is (m1 + m2)u where u is the final velocity, so the ...
A quadratic equation ax2 +bx+c=0 will have only one unique solution if and only if b2-4ac=0. If we apply this to the equation in the question, we get that k2-24=0. If we s...
Firstly, it is important to remember the five areas you will be marked on. These are: AO1: articulate informed, personal and creative responses to literary texts, using associated concepts and terminology...
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