Let g : [1, 4] –→ R be defined by 4. 1 2, let P, be the partition given by P, ={1,2 -2+ 4. Find the upper and lower sums U(Pn.9) and L(Pay9). Hence show that g is integrable on [1, 4] and find g(x) dx.
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![12 Let g : [1, 4] → R be defined by
1<r < 2,
g(x) = { 1,
I = 2,
-2,
2 <r < 4.
For any integer n> 2, let P, be the partition given by P=
{1,2 -2+4.
Find the upper and lower sums U(Pn,g) and L(Pn, 9).
Hence show that g is integrable on [1, 4] and find
9(x) dr.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b3a1bd4-9647-4d71-a211-bbafc7b1359c%2Fb7b34a6c-eccd-416d-9ab6-f6104cfa8699%2Fxxdkcxwc_processed.jpeg&w=3840&q=75)
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