a) Estimate the area under the graph of  f(x) = 7 + 4x2 from x = −1 to x = 2  using three rectangles and right endpoints. R3 = R6 = Sketch the curve and the approximating rectangles for R3 Sketch the curve and the approximating rectangles for R6.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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a) Estimate the area under the graph of 

f(x) = 7 + 4x2 from x = −1 to x = 2

 using three rectangles and right endpoints.

R3 =

R6 =

Sketch the curve and the approximating rectangles for R3

Sketch the curve and the approximating rectangles for R6.

(b) Repeat part (a) using left endpoints.

L3 =  
L6 =

Sketch the curve and the approximating rectangles for L3.


Sketch the curve and the approximating rectangles for L6.

(c) Repeat part (a) using midpoints.

M3 =  
M6 =

Sketch the curve and the approximating rectangles for M3.

Sketch the curve and the approximating rectangles for M6.

(d) From your sketches in parts (a)-(c), which appears to be the best estimate?

 

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