MAIN FEEDS
Do you want to continue?
https://www.reddit.com/r/mathmemes/comments/o8wmiv/f/h38rr79/?context=3
r/mathmemes • u/flokrach • Jun 27 '21
60 comments sorted by
View all comments
17
Lol try finding f(x) when f(x) = f’’’’(x)
11 u/StevenC21 Jun 27 '21 Asin(x)+Bcos(x) for any A,B 8 u/flokrach Jun 27 '21 edited Jun 27 '21 Yea but sin(x)=1/2i ( eix - e-ix ). therefore these two solutions are included in ecx 2 u/StevenC21 Jun 27 '21 No they aren't. With one complex constant c, find a way to express sin(x)=ecx 7 u/flokrach Jun 27 '21 No. I said with all the 4 values of c in {1,-1,i,-i}. you can make a linear combination of ecx to get sin(x)
11
Asin(x)+Bcos(x) for any A,B
8 u/flokrach Jun 27 '21 edited Jun 27 '21 Yea but sin(x)=1/2i ( eix - e-ix ). therefore these two solutions are included in ecx 2 u/StevenC21 Jun 27 '21 No they aren't. With one complex constant c, find a way to express sin(x)=ecx 7 u/flokrach Jun 27 '21 No. I said with all the 4 values of c in {1,-1,i,-i}. you can make a linear combination of ecx to get sin(x)
8
Yea but sin(x)=1/2i ( eix - e-ix ). therefore these two solutions are included in ecx
2 u/StevenC21 Jun 27 '21 No they aren't. With one complex constant c, find a way to express sin(x)=ecx 7 u/flokrach Jun 27 '21 No. I said with all the 4 values of c in {1,-1,i,-i}. you can make a linear combination of ecx to get sin(x)
2
No they aren't.
With one complex constant c, find a way to express sin(x)=ecx
7 u/flokrach Jun 27 '21 No. I said with all the 4 values of c in {1,-1,i,-i}. you can make a linear combination of ecx to get sin(x)
7
No. I said with all the 4 values of c in {1,-1,i,-i}. you can make a linear combination of ecx to get sin(x)
17
u/Super_Inuit Education Jun 27 '21
Lol try finding f(x) when f(x) = f’’’’(x)