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f(x) = x^3 + 3x^2 + 5. Find (a) f ′′(x), (b) ∫f(x)dx.

(a) To find the second derivative of f(x) we must differentiate f twice.the first derivative of f is f'(x)= 3x^2 + 6xthe second derivative therefore is f''(x)= 6x +6 (b) The integral of f(x) with respect to ...
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Answered by Samraj C. • Maths tutor
8413 Views

Given an ordered array of integers "V" and a integer "Sum", write a function that would return "true" if it finds two numbers in V that add up to Sum, and "false" otherwise.

Because there is no unique solution to the problem the goal is to think different ways to approach an issue and ultimately opt for the best one in terms of complexity. There is an example of set of answers t...
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Answered by Fabio D. • Computing tutor
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What is agility? How would you test this?

Agility is defined as 'the ability to move and change direction quickly. (at speed) whilst maintaining control.The Illinois agility test is used to measure agility. It involves the participant starting in a ...
RH
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vous travaillez dans une entreprise où vous avez récemment travaillé des heures supplémentaires sans être payé, écrivez une lettre à votre patron.

Cher Monsieur le directeur, Je vous écris aujourd'hui pour discuter d'un problème que j'ai rencontré sur le lieu de travail. Depuis des semaines, j'espère que ce problème aurait été résolu sans l'utilisation...
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Answered by Erik F. • French tutor
2214 Views

Explain what terminal velocity means.

Consider an object in free fall through the atmosphere. Firstly, we need to consider the forces acting on the object. A force diagram will help here. Weight acts from the centre of mass of the object towards...
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Answered by Alex M. • Physics tutor
3690 Views