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Haven't taken S1!Anybody?
Answers?Guys, its a question of Integration. I'm having trouble understanding how to solve questions in which 2 points are given and relates a constant "k".
View attachment 3356
Guys, its a question of Integration. I'm having trouble understanding how to solve questions in which 2 points are given and relates a constant "k".
f(x) = a - b cos x,Maximum of Cos is 1 and Minimum of Cos is -1.
You have to form two equations and then solve them simultaneously...
Maximum
10=a-b (1)
10=a-b
Minimum
-2=a-b(-1)
-2=a+b
Solve them simultaneously... You will get the answers...
Which question?Which paper is that question from? How can i find the very old past papers of 1990's fdor mechanics 1?
Another Q..
In relation to trapezium rule it is asked to state if its underestimate or overestimate along with a reason..
Wat's the reason that shoud be given?
can any1 pls help me solve the 3rd part of it..
View attachment 3411
From which year is this question? and is the answer 7?
It's written in my mathematics book that 'If a graph is bending downwards over the whole interval from a to b, then you can be certain that the trapezium rule will give you an underestimate of the true area. If on the other hand, a graph is bending upwards over the whole interval from a to b, then you can be certain that the trapezium rule will give you an over estimate of the true area'. Therefore, the 'reason' would be upwards or downwards. For e.g, by looking at the diagram you can say that 'It's an underestimate because the graph is bending downwards' or 'It's an overestimate because the graph is bending upwards'. By the way, what does the marking scheme say about this question?
Marking scheme asks us to justify our statement..no particular reason given though..
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