Is it the same as COS(A+B)^2?
It's been way too long since I've done this stuff.
2007-04-12 05:45:12 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
What I have is COS2(A+B) , where the 2 is superscipt or raised to the power.
2007-04-12 06:26:21 · update #1
in words:
cosine of A plus B squared = cos(A+B)*cos(A+B) which is written cos^2(A+B) so yes.
2007-04-12 05:49:53 · answer #1 · answered by Simeon S 1 · 0⤊ 0⤋
no its not the same.
COS^2(a+B) = COS(a+B) times COS(a+B)
COS(A+B)^2 = cos [(A+B) * (A+B)]
On second thought,
the last one is a very dubious notation.
f(x)^2 doesnt mean a thing .... well when it means something it would be f(x) times f(x).
I prefer the first notation, the ( ) are not grouping ellipses for an expression but the ellipses for the arguments of the function. that is why f(x)^2 doe not mean f(x*x).. so i was wrong.
2007-04-12 12:47:10 · answer #2 · answered by gjmb1960 7 · 0⤊ 0⤋