Answered You can hire a professional tutor to get the answer.
QUESTION
I only need help on part C. I know exactly how to solve it, however, I do not understand what happened to the minus signs as shown in the markscheme
I only need help on part C. I know exactly how to solve it, however, I do not understand what happened to the minus signs as shown in the markscheme and also how they flipper the numerator and denominator.
