Posted by
**Max 2** on
.

1) Given that f(x,y)=xy/x^2+y^2, hence show that f(xy) = f(yx)

2) use the mean value theorem to determine the value of c, given that f(x) = cos5x

Sunday

March 26, 2017
Posted by
**Max 2** on
.

1) Given that f(x,y)=xy/x^2+y^2, hence show that f(xy) = f(yx)

2) use the mean value theorem to determine the value of c, given that f(x) = cos5x

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