MX1 Trig-Calculus Q (1 Viewer)

[ilikedolphin]

Would someone help me with (i) ( and ii if u could)

 

[jimmysmith560]

Would this help?

Part (i):


Part (ii):

 

[ilikedolphin]

Would this help?

Part (i):

View attachment 33840
Part (ii):

View attachment 33841

oof not really, I was looking at those answers and didn't understand

 

[jimmysmith560]

oof not really, I was looking at those answers and didn't understand

What is it that you don’t understand? It would be a good idea to outline whether there are specific parts to the working that you don’t understand so that you may receive additional assistance.

 

[notme123]

oof not really, I was looking at those answers and didn't understand

another way to look at ii is kinda the same method as i but since theyre opposite concavities, their second derivatives are negatives of eachother at x0