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find the sum of r from 0 to n of : 1/((r+1)(r+2)(r+3))

The solution like almost every Methods of Differences questions first involves putting the fraction into partial sums.At this point you would get 3 fractions which can be tricky to deal with. Following wh...

Answered by • Further Mathematics tutor

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expand and simplify (x+6)(x-8)

The method used to solve this problem can be referred to as the FOIL Method, this is an acronym that stands for First, Outer, Inner,

Answered by Poppy D. • Maths tutor

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Make r the subject of the formula: 1/r -1/p = 1/t

Take the 1/p to the other side of the equation1/r = 1/t + 1/p2) Add the fractions together by making the denominators the same1/r = (p+t)/pt3) Cross multiple by multiplying each side of the equation...

Answered by Antonia A. • Maths tutor

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What is the passive voice and when do you use it in Spanish?

It is helpful to understand the passive voice in the context of its counterpart, the active voice. We see the difference between active and passive in these sentences:"The girl wrote an email."&...

Answered by Grace T. • Spanish tutor

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How is tissue fluid formed?

Tissue fluid is the substance that bathes the cells in the body. It is the means by which materials are exchanged between the cell and blood as capillaries cannot reach every individual cell. Despite bein...

Answered by Melissa Y. • Biology tutor

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