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  1. K

    Complex Q

    Hmmm, why did you let n = 3?
  2. K

    Complex Q

    Can someone please explain this whole question to me please I don't understand why in the solution they added pi/3 instead of pi/6
  3. K

    Combinatorics

    Thanks!
  4. K

    Combinatorics

    Why is the answer B and not C???
  5. K

    Trial Q - Binomials

    @howcanibesmarter Thank you so much for your help!!
  6. K

    Trial Q

    Ahh I see I see, thank you for your explanation!
  7. K

    Trial Q - Binomials

    Yeah I got that, but how did you get the nc3 and nc4 part ?? and why was it added
  8. K

    Trial Q - Binomials

    ALso yeah an explanation on 10 would be great!
  9. K

    Trial Q - Binomials

    Thank you so much for the explanation. I was confused how you expanded it though in the third line to get that. Can you explain how you did this please, as I didn't understand the following lines as much because of this
  10. K

    Trial Q - Binomials

    Yep, would you be able to show how to do it please, if you don't mind?
  11. K

    Trial Q - Binomials

    Can someone please show me how to do this q, the answer is D
  12. K

    Trial Q

    Hmm, you reckon you could draw me a diagram if you don't mind making it clear the angle we are calculating?
  13. K

    Trial Q

    Part a for reference
  14. K

    Trial Q

    In this Q, why do the answers calculate the angle of initial velocity to the vertical instead of the horizontal???
  15. K

    Trial Q

    How do we do this q?
  16. K

    Trial Q

    Someone please explain how to do this question
  17. K

    Trial Q

    Can someone please explain how to do this question??
  18. K

    Q

    Can someone explain why the answer to this is D please??
  19. K

    Combinatorics Q

    Can someone please show how to do c (ii)?
  20. K

    CSSA Trial Q

    Ahh I see yes you're right. For 14, is that the full explanation as to why thats the answer or would there be more to it?
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