help in calculus plzzzz...
2007-10-31 01:52:13 · 3 answers · asked by haidielhakim 1 in Science & Mathematics ➔ Mathematics
use standard results:-
f (x) = 2 x
f `(x) = 2
and
f(x) = cosec x
f `(x) = - cosec x cot x
f `(x) = 2 cosec x - (2x) (cosec x) (cot x)
f `(x) = 2 cosec x (1 - x cot x)
2007-10-31 05:20:23 · answer #1 · answered by Como 7 · 0⤊ 0⤋
if your problem is
f(x) = 2 multiplied by cosec x.
Then derivative of f(x) = (-)2.cosec x . cot x.
If it is f(x) = 2.x.cosec x then
its derivative is -
= 2.[ (1). cosec x + x. (-) cosec x . cot x ]
= 2 [ cosec x - x cosec x . cot x ]
2007-10-31 09:11:23 · answer #2 · answered by Pramod Kumar 7 · 0⤊ 0⤋
if f(x)=2x cscx
fdash=2 cscx - 2x cscx cotx
but if u mean f(x)= 2 cscx
fdash=-2 cscx cotx
2007-10-31 08:56:29 · answer #3 · answered by barakota 1 · 0⤊ 0⤋