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HEY I NEED HELP W AN AP CALC AB QUESTION ASAP

HEY I NEED HELP W AN AP CALC AB QUESTION ASAP-example-1

2 Answers

2 votes

Answer:

Step-by-step explanation:

So the limit of the sum of that function was equal to 21/2 (work attached).

Now after solving the other integrals, we get the first is equal to 8 after solving, the second is equal to 39/2, the third is equal to 25/2, and the last one is equal to 21/2 (our answer). So
\int\limits^5_2 {(x)} \, dx is our answer.

HEY I NEED HELP W AN AP CALC AB QUESTION ASAP-example-1
User Bhiefer
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Answer: The answer is option 4.
\int\limits^2_5 {x} \, dx

Explanation: It comes from simple observation. We get from the expression that


\Delta x=(b-a)/(n), then
\Delta x=(3)/(n) in the expression given.

From that we get how much is, i.e., b-a = 3, and also


f(a+i\cdot \Delta x )=(2+ i \cdot (3)/(n) ),

which shows us that the function is
f(x)=x\\ and the initial value a=2,

the only option from the possibilities that fulfills all of it is the option number 4, that is


\int\limits^2_5 {x} \, dx

User Jtrim
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