Project152 Week 20 Solutions

To prepare for the Specialist External exam, each week Project152 will be presenting a new batch of past questions for you to try.
If you stick with us and tune in every week, by the time the externals have rolled around, you will have attempted all 152 of the past questions from the QCAAs external exams.
Link to the week 20 questions (and all previous questions and solutions) can be found here: mathsvideosaus...
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[@nicholaslau2818]

Hey, joel, the website says that Sunday is the 5th of August, but it's actually today (4th of August).

[@sairabatool2901]

In question 13 there is a mistake....by parts is supposed to be uv -/vu'. But it's been calculated as uv'-/vu'.