Live Lesson: AS Pure Mathematics P1 - Trig Graphs

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[@ssh3253]

woowww

[@tahabashir4708]

why do we study this is it applied in real life?

[@tafadzwamanyeruke8741]

lol true

[@TopG20073]

what do we do if they told us to solve 3sin(x/2)-1? I understand that Y is stretched to max at 3 and min at -3 then subtracted, maximum is at 2, and minimum is at -4, but I don't understand how we divide x by 2, I tried doing it, but it is a totally different graph from what is shown in the book.

[@swaztek]

So when you have stretch by 1/2x, your graph is stretched out by scale of 2. So your first amplitude would be at 180* instead of 90*

[@TopG20073]

@@swaztek thanks I got it

[@ssh3253]

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[@tahabashir4708]

abe prhne aya hai kya krhne aya hai ajeeb