1. Math
  2. Calculus
  3. please answer both and i promise to upvote your answerthanks...

Question: please answer both and i promise to upvote your answerthanks...

Question details

For f (z)z3 2z2 -4 1, fis increasing on which of the following intervals? o A (-23) O B. oo, -1) and,00 C. (-00,-2) and ( , ooThe graph of y = tan x is concave up on which of the following intervals? OB. ,0 ππ D. (0,T) O E. (-π,0)Please answer BOTH and I promise to upvote your answer.Thanks! :)

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