Find dydx if y=x^3∫3xe^ttantdt.

For an indefinite integral, use the notation INT in place of the symbol. For example, ∫(x+1)dx should be written as INT(x+1)dx. For a definite integral, use the notation INT(a,b). For example, ∫21(x+1)dx should be written as INT(1,2)(x+1)dx. For a definite integral that has been integrated, use the notation EVAL(a,b). For example, (x^2/2+x)2∣1 should be written as (x^2/2+x)EVAL(1,2)