3 Find the derivative of f(w} : w 4 + 7w. What is the domain of f! (w)? Enclose numerators and denominators in parentheses. For example (a 5),\" [1 + n]. Enterthe domain in interval notation. For 00, type infinity. 1\" (w) = [QED Domain of fJlr (at) [Q Ill Given f ( w ) = ( w) 3 / 4 + 7 W Differentiate f(w) with respect to " w ' -2 iw [ f (w ) ] = 2 [ (w)3 + 7 w ] - > f ( w ) = d [ ( w ) " " ] + 7 d ( w ) - ) f ( w ) = 3 ( w ) " - 1 + 7 ( 1 ) - > f ( w ) = 3 ( W ) " + 7 aw ( w " ) = nwins = ) f ( w ) = 1 X + 7 aw ( w ) = 1 ( W ) = ) f ( w ) = 3 + 4 ( w ) This the Answer but we can also write it As =) f'( w ) = [ 3 + 7 x 4 ( W ) 14- 4 ( W ) ' 4 If ' ( w) = 13 + 28 ( w ) 1 /4 [ 4 ( w ) ' " ]