- #1
parabol
- 17
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Homework Statement
1st problem
I'm struggling to answer this question using my calculus workbook.
Find the point of intersection of the lines:
[tex]y_{1}=3x+2[/tex]
[tex]3y_{2}=16-x[/tex]
I can solve this question as a simultaneous equation, but, as it is in my calculus question paper believe it to be less simple. Is there some method of differentiating the equations in order to work out the intersect point?
2nd problem
If [tex]f(x)=7x^3 + 8x^2 - x + 11[/tex], evaluate;
a) [tex]\int\stackrel{+1}{-1}f(x)dx[/tex]
b) [tex]\int\stackrel{+1}{-1}f ' (x)dx[/tex]
c) [tex]\int\stackrel{+1}{-1}f '' (x)dx[/tex]
I'm happy with the integration but just wanted to make sure that I am working the integration of first the function, then the higher order derivatives or should it be higher order integration.
Sorry if the problems seem simple but I'm struggling to understand my workbook.