Submitted by TR14 on Tue, 12/20/2016 - 10:13
Forums:
Sorry to be nitpicky but in the partial solutions to Assignment 16 q2 ii shouldn't we rather find 3sinA - 4sin^3 A ?
Also for q3 i might it not be easier to use cos^2 A + sin^2 A = 1 on cos15 to find sin15 rather than using the sin2A formula?
Thanks!
Always very grateful for comments/suggestions/pointing out of mistakes! I'll have a look.
Yep.
q2ii should be $\sin^3$ rather than $\sin ^2$, sorry for the typo.
I will also reword q3 to say that there is more than one way to do it.
Thanks again.