If f(x)= cases (a+2)x+ x x & ; x0 cases is continuous at x =...

Question

If f(x)= cases (a+2)x+ x x & ; x<0 b & ; x=0 (x+3x^2)^ 1/3 -x^ 1/3 x^ 4/3 & ; x>0 cases is continuous at x = 0, then a + 2b is equal to :

Accepted Answer

(D)

JEE Main 2020 Mathematics question