Math for Educators

posted by .

Use Gauss's approach to find the following sums (do not use formulas).
a. 1 + 2 + 3 + 4 +...+ 102
b. 1 + 3 + 5 + 7 +...+1001

a. The sum of the sequence is ?
b. The sum of the sequence is?

Are my answers correct? If not why, and how do I get the correct answers?

Similar Questions

1. Problem Solving Math

Use the approach in Gauss's Problem to find the following sums (do not use formulas) b. 1 + 3 + 5 + 7 +..... + 1001 Clearly the first number is 1, and last number is 1001, and the increment is 2. This a plug n chug. yes but, i will …
2. MATH

1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL STEPS) sin 2x - sin x = 0 2.) GIVEN: sin u = 3/5, 0 < u < ï/2 Find the exact values of: sin 2u, cos 2u and tan 2u using the double-angle formulas. 3.)Use …
3. PRE CAL SEQUENCES

Given the following finite sum 1/(1*2)+1/(2*3)+1/(3*4)+1/(4*5)+....+1/(n(n+1)) a) Find the first 5 partial sums b) Make a conjecture for a formula for the sum of the first n terms c) Use mathematical induction to prove your formula

Use the expressions for left and right sums and the table below. right-hand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t left-hand sum …
5. Math help quickly

Use the expressions for left and right sums and the table below. right-hand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t left-hand sum …
6. Math

1. Find the sum of the first 21 terms of the arithmetic sequence given by the formula an = n+5 I see that I have to plug in numbers and get the terms...but i'm sure there's a shorter way to do this instead of plugging in 21 numbers. …
7. Math

I need some help with these quesitons 1. a1 = -1, and an = 4/3an-1 for n = 2, 3, 4, ___. What is the common ration, r, for this sequence?
8. Math

I need some help with these quesitons 1. a1 = -1, and an = 4/3an-1 for n = 2, 3, 4, ___. What is the common ration, r, for this sequence?
9. math

Use Gauss's approach to find the following sums ( do not use formulas). A. 1+2+3+4+...1001 B. 1+3+5+7...+99.
10. math

the gauss's approach to find the following 1+2+3+4+... 99 1+3+5+7+...101

More Similar Questions