How would I solve the following two questions. Using the intermediate value theorem to show that there is a solution of the equation sin^2x/2−x+1=0 in the interval [0,pi] I showed by the IVT there is a c in [0,pi] give that c is zero because 0<1 0>−pi+1 but I am not sure if it did this correctly. 2.My second question asked me to sketch a function that satisfies the following conditions or prove that it is impossible f(x) is a continous function on [0,2] its minimum value is −3 but it does not have a max value. I said this is impossible because if f(x) is continous on a bounded interval it must have both a max and min value.

saborcehj

saborcehj

Open question

2022-08-25

How would I solve the following two questions.
Using the intermediate value theorem to show that there is a solution of the equation s i n 2 x 2 x + 1 = 0 in the interval [ 0 , p i ]
I showed by the IVT there is a c in [ 0 , p i ] give that c is zero because 0 < 1 0 > p i + 1 but I am not sure if it did this correctly.
2.My second question asked me to sketch a function that satisfies the following conditions or prove that it is impossible f ( x ) is a continous function on [0,2] its minimum value is −3 but it does not have a max value.
I said this is impossible because if f ( x ) is continous on a bounded interval it must have both a max and min value.

Answer & Explanation

Kingston Oliver

Kingston Oliver

Beginner2022-08-26Added 4 answers

Using the intermediate value theorem to show that there is a solution of the equation sin 2 x 2 x + 1 = 0 in the interval [ 0 , π ]

"I showed by the IVT there is a c in [ 0 , π ] give that c is zero because 0 < 1, 0 > p i + 1 but I am not sure if it did this correctly."

Your process in answering this is just fine: just clarify the details:

Let f ( x ) = sin 2 x 2 x + 1.
Show the Intermediate Value theorem does, in fact, apply on the given interval [ 0 , π ]: Then f ( 0 ) > 0 and f ( π ) < 0, using your computations...etc., including the details/justifications, you posted.
The second part looks just fine, as it is, as you explained exactly why it is not possible.
Dayana Doyle

Dayana Doyle

Beginner2022-08-27Added 17 answers

because f ( 0 ) = 0 < 1 and because f ( p i ) = p i + 1 < 0 i guess

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