Q. 1 Use BEMDAS. Do the multiplication and division before the addition and subtraction:

.

Q. 2 You did all the hard work but got the answer wrong:

,

and so the answer is

and not .

Q. 3

Q. 4 Use the laws of logs (in the table) to write:

and

.

Now use the other law to write:

as a single log. It is possible to simplify already the expressions and but this is not wholly necessary.

Q. 5 a) You went from an equation to a non-equation.

APPLY THE SAME FUNCTION TO BOTH SIDES

I don’t really see why you would want to solve this equal to zero:

The problem is the division by and the division by . Get rid of those and the problem is easier. The appropriate inverse functions are and , and if we apply both we have :

.

Work from here.

Q. 5 b)

Q. 5 c) Check both answers by substituting into the original equation. Squaring can give extra solutions!

Q. 6 a)

Q. 6 b) You have

.

This is correct. The inverse of multiplying by is or . Apply this function to both sides to find .

Regards,

J.P.

I have attached below the questions I have done by myself which I was not able to complete in the tutorial class. The questions in the box are the ones I am stuck on or not sure what to do with.

Can you please have a look at the questions and let me know if they are correct and how to solve them.

Kind regards.

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