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Differentiate this equation: xy^2 = sin(3x) + y/x

y 2 + 2xy dy/dx = 3cos(3x) + 1/y - x/y 2 dy/dx thereforedy/dx = (3cos(3x) + 1/y - y 2 ​​​​​​) / (2xy + x/y 2 )
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Answered by Alexander E. • Maths tutor
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The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5 Work out the area of the triangle

Perimeter= 72Ratios are 3:4:5In total, you can think of there being 3+4+5=12 "portions".This means that in the perimeter includes 12 portions. 72/12=6 so each portion is worth 6cm. Now we can work ...
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Answered by Natasha A. • Maths tutor
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In Aeneid X, to what extent does Virgil glorify war?

Essay Plan [the introduction and conclusion are standard outlines; the paragraphs are based on my own personal answer to the question - a sample answer of sorts]. Introduction: Overview of the Aeneid with re...
Answered by • Latin tutor
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To what extent is Romeo and Juliet a tragedy?

Romeo and Juliet is a tragedy about a couple who stake everything on the pleasure of “one short minute”. Of all Shakespeare’s plays, Romeo and Juliet is unusually full of words relating to time and specific ...
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Answered by Margarita M. • English tutor
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Explain why global agreement on actions to reduce greenhouse gas emissions is difficult to achieve?

Global agreement on actions to reduce greenhouse gas emissions is difficult to achieve due to the negative public perception of certain 'greener alternatives', the price of switching to renewable energy and ...
Answered by • Geography tutor
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