[T] Compute the left and right Riemann sums, L 1 0 and R 1 0 , and their average L 10 + R 10 2 for f ( t ) = ( 4 − t 2 ) over [1, 2]. Given that ∫ 1 2 ( 4 − t 2 ) d t = 1. 66 ¯ , to how many decimal places is L 10 + R 10 2 accurate?
[T] Compute the left and right Riemann sums, L 1 0 and R 1 0 , and their average L 10 + R 10 2 for f ( t ) = ( 4 − t 2 ) over [1, 2]. Given that ∫ 1 2 ( 4 − t 2 ) d t = 1. 66 ¯ , to how many decimal places is L 10 + R 10 2 accurate?
[T] Compute the left and right Riemann sums, L10 and R10, and their average
L
10
+
R
10
2
for
f
(
t
)
=
(
4
−
t
2
)
over [1, 2]. Given that
∫
1
2
(
4
−
t
2
)
d
t
=
1.
66
¯
, to how many decimal places is
L
10
+
R
10
2
accurate?
For each real-valued nonprincipal character x mod k, let
A(n) = x(d) and F(x) = Σ
:
dn
* Prove that
F(x) = L(1,x) log x + O(1).
n
By considering appropriate series expansions,
e². e²²/2. e²³/3.
....
=
= 1 + x + x² + ·
...
when |x| < 1.
By expanding each individual exponential term on the left-hand side
the coefficient of x- 19 has the form
and multiplying out,
1/19!1/19+r/s,
where 19 does not divide s. Deduce that
18! 1 (mod 19).
Proof: LN⎯⎯⎯⎯⎯LN¯ divides quadrilateral KLMN into two triangles. The sum of the angle measures in each triangle is ˚, so the sum of the angle measures for both triangles is ˚. So, m∠K+m∠L+m∠M+m∠N=m∠K+m∠L+m∠M+m∠N=˚. Because ∠K≅∠M∠K≅∠M and ∠N≅∠L, m∠K=m∠M∠N≅∠L, m∠K=m∠M and m∠N=m∠Lm∠N=m∠L by the definition of congruence. By the Substitution Property of Equality, m∠K+m∠L+m∠K+m∠L=m∠K+m∠L+m∠K+m∠L=°,°, so (m∠K)+ m∠K+ (m∠L)= m∠L= ˚. Dividing each side by gives m∠K+m∠L=m∠K+m∠L= °.°. The consecutive angles are supplementary, so KN⎯⎯⎯⎯⎯⎯∥LM⎯⎯⎯⎯⎯⎯KN¯∥LM¯ by the Converse of the Consecutive Interior Angles Theorem. Likewise, (m∠K)+m∠K+ (m∠N)=m∠N= ˚, or m∠K+m∠N=m∠K+m∠N= ˚. So these consecutive angles are supplementary and KL⎯⎯⎯⎯⎯∥NM⎯⎯⎯⎯⎯⎯KL¯∥NM¯ by the Converse of the Consecutive Interior Angles Theorem. Opposite sides are parallel, so quadrilateral KLMN is a parallelogram.
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Definite Integral Calculus Examples, Integration - Basic Introduction, Practice Problems; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=rCWOdfQ3cwQ;License: Standard YouTube License, CC-BY