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What's the best way to learn vocabulary?

Either putting them on post it notes and sticking them around your room so you see them everywhere or making flashcards with the English word on one side and the French word on the other. There are loads ...

HG
Answered by Harriet G. French tutor
2558 Views

(a) Express 9x+11/(2x+3)(x-1) as partial fractions and (b) find the integral of 9x+11/(2x+3)(x-1) with respect to x

(a)  9x+11/(2x+3)(x-1) = A/2x+3 + B/x-1
      9x+11 = (x-1)A + (2x+3)B
      Setting x=1 gives B=4, setting x=-3/2 gives A=1
      so the final answer is 1/(2x+3) + 4/(x-1)
 

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AT
Answered by Amelia T. Maths tutor
5487 Views

What is the difference between 'ser' and 'estar'?

Unlike English, there are two verbs that translate into Spanish as 'to be'. Getting this difference right is one of the hardest things for a learner of Spanish to learn. You would use 'ser

TR
Answered by Tom R. Spanish tutor
3087 Views

Find W where: 11-W/4 = 1+W

11-W/4 = 1+W

11-W = 4+4W      (Multiply both sides by 4) 

11 = 4+5W          (Add W to both sides) 

7 = 5W                ( Subtract 4 from both sides)

W = 7/5               (D...

LW
Answered by Liam W. Maths tutor
10599 Views

Trypsin is a protease produced in an inactive form in some cells of the pancreas. Suggest the advantage of producing it in an inactive form?

Trypsin is a protease that acts in the small intestine to digest proteins. The advantage of it being produced inactive form in the pancreas is so that it doesn't digest pancreatic proteins. This means it ...

SA
Answered by Sarah A. Biology tutor
20288 Views

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