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## Main Question or Discussion Point

Hi all, my first post so go easy on me! Doing some revision and have been tripped up on a really simple question!

Where f(x) = xCos(x)

Show the bound f '(x)<=6 is valid for 0<= x<=5

I suspect this is an easy solution using the intermediate value theorem!

Thanks in advance,

slippers

Where f(x) = xCos(x)

Show the bound f '(x)<=6 is valid for 0<= x<=5

I suspect this is an easy solution using the intermediate value theorem!

Thanks in advance,

slippers