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Translate the following: If it hadn't rained, she would have gone to the park.

S'il n'avait pas plu, elle serait allée au parc. Just as in the English example, this 'Si' clause requires the pluperfect tense and the conditional perfect. 'Si' clauses are constructed around two essential ...
ML
Answered by Milly L. • French tutor
2833 Views

integral of (tan(x))dx using the substitution u = cos(x)

given u = cos(x), therefore du/dx=-sin(x), as tan(x)=sin(x)/cos(x), can rewrite tan(x)=(-du/dx)/u, therefore integral can become [(-1/u)du], after inegrating you are left with -ln(u)+c, therefore ln(1/u)+c, ...
FR
Answered by Frederick R. • Maths tutor
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f(x) = x^x, find f'(3).

Therefore, y = x x can then natural log both sides leaving ln(y) = xln(x) then differentiating both sides wrst to x d/dx(ln(y)=xln(x))we are then left with this expression (dy/dx)(1/y)=ln(x)+1 multiplying up...
FR
Answered by Frederick R. • Maths tutor
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A 10 kilogram block slides down a 30 degree inclined slope, the slope has a coefficient of friction of 0.2. Calculcate the blocks acceleration down the slope.

Resolving all forces in the vertical gives the normal force as 10gcos(30). Resolving all forces normal to the slope gives the frictional force as 2gcos(30) (given Friction = mu*R). Using second law, F=ma. 10...
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Answered by Frederick R. • Maths tutor
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Vous écrivez un article sur la santé des jeunes. Vous devez mentionner ce que vous mangez et buvez, vos méthodes pour rester en forme et votre opinion sur le tabac, et sur l'avenir de la santé des jeunes.

En ce qui concerne la santé et le bien-être, on ne peut pas sous-estimer l'importance d'une routine quotidienne. Pour cette raison, j'essaie de maintenir un régime stricte chaque jour de légumes, poulet et r...
OL
Answered by Oliver L. • French tutor
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