We write the (open) intervals with … therefore the interval you have — — is more correctly written as .

For Q. 9 see

https://jpmccarthymaths.com/2015/03/26/math6037-week-8/#comment-4476

Regards,

]]>Just want to go over p. 69 Q. 4 (viii); I’m getting a root in not sure if I’m gone wrong somewhere.

Also do you have a solution for Q.9?

Regards.

]]>Note

.

Using the chain rule, the derivative of is … this is in the tables.

Therefore the derivative of is .

Regards,

J.P.

When you differentiate , what is the answer? Is it or 0?

Thanks.

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