3) kindly use the Second .Fundamental Theorem. of calculus to find F'( x ) for F ( x ) = [ 2 ( 3t sint ) dt x 4 - 7 4 ) Please use "u" substition or " Inspection " to find the following Indefinite Integrals. a ) 5 x 3 ( x " + 1 ) 2 dx tant -) sect do Please use an variables find appropriate " change of X dx (4 + x ) 3