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Discussion in 'Cambridge O Levels' started by OakMoon!, Apr 21, 2011.
how to do the highlighted question?
Hi the solution to June and November 2016 has already been added to this mobile application ::
Maths D YEARLY O LEvEL :: https://play.google.com/store/apps/details?id=com.anagnorisismathsolevelyearlydws.com
Ok so this question is tough.
Speed of sparrow is x km/h in STILL air.
When wind is blowing at 1 KM/H, sparrow takes 5 hours to fly 12 km to nest and 12 km back again. She goes out directly into win and returns with wind behind her. Find Normal speed.
how to solve Thought blocker
Voulme of cylinder = pi r^2 h
Volume of outter cylinder(VO) = pi (3.5 + r)^2 (20)
volume of inner cylider (VI)= pi r^2 (20)
Volume of solid = VO - VI
3000 = VO - VI
Solve for r
r = 5.07
can anybody please explain questions related to upperbond and lowerbond
Post the question. We will see where we can help u.
thank you so much
part b anyone?
You cant use cos rule here. How to solve without that.
But y can't v use it? It's not written in the question that v can not use it
I don't think that there is any other way of solving it
I mean yes we can use it here. I'm looking for a way to solve without it.
Now I don't think there is.
Thank you by the way
No there isn't... in the mark scheme as well the same one is given
Can anyone solve question 9 of this paper?
We always use this in finding the area of a graph. (UPPERBOUND - LOWERBOUND)
For example in this graph,
We will find the area by subtracting the blue curve from the red curve.
This is also used when a line intersects the graph at more than two points.
Hope this answers your question.
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