Limits (1 Viewer)

[Kutay]

Hey i was wondering the actual working that is needed to get full marks for this type of question..... because the way i do it is just by looking at it... but seen this question worth 2 marks and yeh just want to be prepared in case got to show how got it ...

Lim THETA to 0 THETA + sin2THETA
-------------------------
3THETA

Thankyou

 

[acmilan]

(@ + sin2@)/3@

= (@/3@) + (sin2@/3@)
= 1/3 + 2/3*(sin2@/2@)

taking the limit gives 1

edit: copied the question wrong. Corrected

 

[MAICHI]

Isn't it sin2@?

Just write L=1. You should get 2 marks.

But if you want working out then just do what acmilan did, change his sin@ to sin2@=2sin@cos@. Should get 1/3 + 2/3 = 1.

 

[withoutaface]

Writing L=1 might get you 1/2 marks for a question, but given you can use your calculator to cheat on limits questions i wouldnt think you could get full marks.

 

[Kutay]

thankyou i will go over ac's working and try comprehend it lol
hmm need to sleep

 

[acmilan]

If you want the step by step proof: