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Find the equation of the tangent for x = 2cos (2y +pi)

So this initially looks like a tricky question- especially the way it is written in the form of x as a function of y, ( x(y) ), rather than what we normally see y as a function of x, ( y(x) ).The first th...

TM
Answered by Tonia M. Maths tutor
3664 Views

What does ADH do in the Kidney?

ADH or Anti Diuretic Hormone is a hormone that regulates the amount of water absorbed in the kidney. It acts on the collecting duct of the kidney, which is the last part of the nephron (a single functiona...

JH
Answered by Julia H. Biology tutor
6858 Views

‘Theatre of the present is not as exciting as theatre of the past’ (30 Marks)

Title of the Play: The BacchaePlaywright: EuripidesDate Seen: 31st July 2016Venue of the Production: Osterley Park I would argue that theatre of the present is more exciting than theatre of the...

JS
Answered by Joseph S. Drama tutor
2398 Views

Why is sin(t)^2 + cos(t)^2 = 1 true for all t?

To answer this we need to consider a circle of radius r centred at the origin, drawn in the x,y plane. We'll draw a right-angled triangle such that the hypotenuse is the radius, and say that the point whe...

MV
Answered by Matt V. Maths tutor
3617 Views

(a) Use integration by parts to find ∫ x sin(3x) dx

The question asks for integration by parts. Therefore we need to differentiate one variable and integrate the other. First we need to decide which variable is going to be which. Algebra should always be d...

GA
Answered by George A. Maths tutor
8283 Views

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