1 votes 1 votes f(x) = 2x3 – 15x2 + 36x + 1 is increasing in the interval a) b) c) Mathematical Logic made-easy-test-series calculus functions maxima-minima + – Kuldeep Pal asked Jan 6, 2018 edited Mar 5, 2019 by Aditi Singh Kuldeep Pal 303 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Anu007 commented Jan 6, 2018 reply Follow Share is it $\left (- \infty , 2 \right ) and \left ( 3 , +\infty \right )$ 0 votes 0 votes Kuldeep Pal commented Jan 6, 2018 reply Follow Share why +infi and - infi 0 votes 0 votes Please log in or register to add a comment.