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 2 years ago
HELP PLEASE)..Estimate the area of the given function, f(x) = x2 + 1 using 4 inscribed rectangles on the interval [2, 4].
 2 years ago
HELP PLEASE)..Estimate the area of the given function, f(x) = x2 + 1 using 4 inscribed rectangles on the interval [2, 4].

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Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0@mathsmind this one first tho

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0what i understand is that we have to integrate between 2 and 4

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0i am having some problems it says [Math Processing Error]

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0\[int_{2}^{4} x^2 dx\]

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0or is it about drawing estimating the area of the parabula using blocks of squares...

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0i dont know but this one is too hard :( its worth 7.0 pts im so confused, i feel like crying

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0\[int_{2}^{4} x^2 dx \]

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0this work is getting to hard for me

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0well you have to suffere the pain of knowledge and hardship for a better future, we all went through hard times ...

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0you should fight back and not let the questions beat you ...

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0i think this question is saying estimate the area using rectangles, on a proper sheet

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0so first of all we need to divid the interval

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0what i mean by that is to divide the interval into 4 sub inscribed intervals

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0let it be 2, 2.5, 3, 3.5 and 4 because they 2 and 4 are included in the interval using square brackets notation...

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0are you with me, this is the logic of the question from my understanding

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0I am sorry that the equation editor is not functioning propely for me, probably due to browser issue, or technical problem with open study...

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0A = 0.5[f(2)+f(2.5)+f(3)+f(3.5)+f(4)

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0i'm looking,i'm here trying to understand

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0now before that the reason why i divided the intervals by a step of 0.5 is due to the fact that dx = (42)/4=0.5, hence 2, 2.5...etc

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0let me help you on the first one f(2) = (2)^2+1=4+1=5

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0and finally what is f(4)=?

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0give me a coplue mins as i work on finish another problem

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0i don't understand how you got the f(2)= part

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0ok i will solve it i am replying to 287489327498732987498237 posts at the same time ... hehehe

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0lol okay, i can't keep hogging you,ill be working on others as i wait.

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0now young lady, let's see what your problem is...

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0step one: dx = (42)/4 = 1/2=0.5

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0step two divide the interval [2, 4] into [2, 2.5, 3, 3.5, 4]

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0step three find : A = 0.5[f(2)+f(2.5)+f(3)+f(3.5)+f(4)]

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0f(2) =(2)^2+1=5, f(2.5)=(2.5)^2+1= 7.25. f(3)=(3)^2+1=10, f(3.5)=(3.5)^2+1=13.25, and f(4) = (4)^2+1=17

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0: A = 0.5[5+7.25+10+13.25+17]=? use the calculator

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0@Ephilo are you there...?

Ephilo
 2 years ago
Best ResponseYou've already chosen the best response.0yes im writing it on paper

mathsmind
 2 years ago
Best ResponseYou've already chosen the best response.0you need to understand what we did, it is a numerical integration method ....
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