Egyptian mathematics had a unique way of writing fractions as sums of unit fractions – that is, fractions of the form 1 n . For example, the fraction 2 9 could be written as 1 6 + 1 18 and also as 1 5 + 1 45 . They would not represent a number like 2 3 as 1 3 + 1 3 ; they would use two different unit fractions. Unit fractions were written by placing the symbol , which looked somewhat like an eye, over the numeral. For example, 1 3 could be written as . In exercises 79 − 82 , write the given fractions as the sum of unit fractions, using our common notation rather than the cumbersome Egyptian notation. (There may be several correct answers but we will give only one.) 2 33
Egyptian mathematics had a unique way of writing fractions as sums of unit fractions – that is, fractions of the form 1 n . For example, the fraction 2 9 could be written as 1 6 + 1 18 and also as 1 5 + 1 45 . They would not represent a number like 2 3 as 1 3 + 1 3 ; they would use two different unit fractions. Unit fractions were written by placing the symbol , which looked somewhat like an eye, over the numeral. For example, 1 3 could be written as . In exercises 79 − 82 , write the given fractions as the sum of unit fractions, using our common notation rather than the cumbersome Egyptian notation. (There may be several correct answers but we will give only one.) 2 33
Solution Summary: The author explains how to write the tion 233 as a sum of unit tions.
Egyptian mathematics had a unique way of writing fractions as sums of unit fractions – that is, fractions of the form
1
n
. For example, the fraction
2
9
could be written as
1
6
+
1
18
and also as
1
5
+
1
45
. They would not represent a number like
2
3
as
1
3
+
1
3
; they would use two different unit fractions. Unit fractions were written by placing the symbol , which looked somewhat like an eye, over the numeral. For example,
1
3
could be written as. In exercises
79
−
82
, write the given fractions as the sum of unit fractions, using our common notation rather than the cumbersome Egyptian notation. (There may be several correct answers but we will give only one.)
4.7 Use forward and backward difference approximations of O(h)
and a centered difference approximation of O(h²) to estimate the
first derivative of the function examined in Prob. 4.5. Evaluate the
derivative at x = 2 using a step size of h = 0.2. Compare your results
with the true value of the derivative. Interpret your results on the
basis of the remainder term of the Taylor series expansion.
• Plane II is spanned by the vectors:
P12
P2 = 1
• Subspace W is spanned by the vectors:
W₁ =
-- () ·
2
1
W2 =
0
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