***** UPDATE! *****
The function:
Mr. Beefy,
If n = 35
If n = 68
I need to review my work on this. I wanted to express this as a polynomial of cos(x).
I started with the basic identities cos(2x), sin(2x) and cos(3x)
Saturday, April 23, 2011
(1 + 2cos(20 °))^n
Find a natural number n for which the expression round (1 + 2cos(20 °))^n is divisible by 1,000,000,000.
Mr. Beefy,
If n = 35
If n = 68
I need to review my work on this. I wanted to express this as a polynomial of cos(x).
I started with the basic identities cos(2x), sin(2x) and cos(3x)
Mr. Beefy,
If n = 35
If n = 68
I need to review my work on this. I wanted to express this as a polynomial of cos(x).
I started with the basic identities cos(2x), sin(2x) and cos(3x)
Subscribe to:
Post Comments (Atom)
Wouldn't ANY n result in a number divisible by 1,000,000,000?
ReplyDeleten = 35 would have a number in excess of 1,000,000,000; n = 68 would have a number that is a whole number when divided by 1,000,000,000
ReplyDelete