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Find the indefinite integral of f(x)=(1-x^2)/(1+x^2)

Int() in this case will refer to integralsAnswer is: f(x)=(1-x^2)/(1+x^2)=(2-(1+x^2)/(1+x^2)=-1+2/(1+x^2)=> Int(f(x))=Int(-1+2/(1+x^2))=Int(-1)+2Int(1/(1+x^2))=-x+2tan^-1(x)+C

Answered by • Maths tutor

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Magnesium oxide contains magnesium ions (Mg2+) and oxide ions (O2–). Describe what happens when magnesium atoms react with oxygen atoms to produce magnesium oxide.

magnesium ions loses two electrons becoming Mgoxygen gains two electron becoming OThis now means both the atoms have a full shell

Answered by Rabia D. • Chemistry tutor

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Was James I the cause of religious disputes between the years 1603 to 1625?

The reign of James I has divided historians for centuries, however, more contemporary outlooks have made efforts to debunk the 'myth' that he was an incompetent and harmful monarch. On the contrary, evide...

Answered by Robin R. • History tutor

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Describe how the hormones FSH, oestrogen and LH are involved in the control of the menstrual cycle

FSH stimulates oestrogen productionoestrogen inhibits FSH and stimulates LH /LH stimulates egg release

Answered by Rabia D. • Biology tutor

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Why are Monopolies able to profit maximise?

Essentially there are several features of a market structure which determines why monopolies are able to profit maximise.
Very small number of sellers in the given market, In a pure monopoly there is...

Answered by • Economics tutor

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