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Use the substitution u = cos 2x to find ∫(cos^2*(2x) *sin3 (2x)) dx

∫(cos2 2x *sin3 2x)dx u = cos2x - u =(du/dx) = -2sin2x - differentiate u dx = du/(-2sin(2x)) - dx = -1/2 ∫cos22x * sin22x du - sub in dx-1/2 ∫u2(1-u<...

WB
Answered by Will B. Maths tutor
7653 Views

Does the equation x^2 + 2x + 5 = 0 have any real roots?

This equation has no real roots, as when we test the equation with the formula b2 - 4ac, we get 22 -415 = 4 - 20 = -16. As this is negative we can be assured that this equat...

SB
Answered by Sami B. Maths tutor
5045 Views

Can you explain the Paul Willis' take on the education in 'Learning to Labour'?

Paul Willis has published a book called 'Learning to Labour', where he discussed the anti-school subculture at schools in 1977. He did an experiment on 12 working class schoolboys from the Midlands to...

ND
Answered by Nursah D. Sociology tutor
10555 Views

Do minimum wages cause unemployment?

Yes, according to the standard model of the labour market, an introduction of a minimum wage above the market clearing wage rate will cause an excess of labour in the market. This model assumes conditions...

CD
Answered by Ciaran D. Economics tutor
2329 Views

Explain the main points of the Design Argument for the existence of God.

The Design Argument for the existence of God suggests that, due to the unexplainable complexity of the world around us, there must have been an intelligent 'designer' who created it. The argument is well ...

AH
7618 Views

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