Trig Differentiation
For 6b it wants the derivative in terms of x but I dont know how to simplify my answer further (if it's correct). Also am I allowed to square root both sides to get y in terms of x?
https://imgur.com/a/XHJ0pL3
https://imgur.com/a/XHJ0pL3
Original post by Y12_FurtherMaths
For 6b it wants the derivative in terms of x but I dont know how to simplify my answer further (if it's correct). Also am I allowed to square root both sides to get y in terms of x?
https://imgur.com/a/XHJ0pL3
https://imgur.com/a/XHJ0pL3
You differentiated correctly but you need to look at other ways of simplifying it - use other trig relationships.
Original post by Muttley79
You differentiated correctly but you need to look at other ways of simplifying it - use other trig relationships.
I'm stuck, can you give me a pointer please?
edit: Nevermind I've got it thanks
(edited 4 years ago)
Original post by Y12_FurtherMaths
I'm stuck, can you give me a pointer please?
edit: Nevermind I've got it thanks
edit: Nevermind I've got it thanks
Well done
I find if you put a problem down and come back to it then you often have another idea.
Original post by Muttley79
Well done
I find if you put a problem down and come back to it then you often have another idea.
I find if you put a problem down and come back to it then you often have another idea.
I had to look up the relationship on google though. How are we supposed to know that though since it's not in our formula booklet and it's a 3 mark question?? Perhaps there is another way of working this out?
Original post by Y12_FurtherMaths
I had to look up the relationship on google though. How are we supposed to know that though since it's not in our formula booklet and it's a 3 mark question?? Perhaps there is another way of working this out?
You need to know more formulae than are in the booklet - or know how to get the ones you need from those in the booklet. You'll gain more experience the more questions you do
Original post by Muttley79
You need to know more formulae than are in the booklet - or know how to get the ones you need from those in the booklet. You'll gain more experience the more questions you do
Appreciate it thank you
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