See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

For More Material Join: @JEEAdvanced_2025 AITS-FT-I (Paper-2)-PCM(Sol.)-JEE(Advanced)/2025 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 13 Sol. (Q.48 – 49) We have,    3 f x x a b    …….(i) Since, Rolle’s theorem is applicable to  g x at x 2,  So   g a g b  and  g' 2 0        2 0 f b f a a b f ' b 3 b a        and      a 2 f " 2 6 2 a 0           f b f a f ' b 3 b a b a      ……(ii) and  f " 2 6  …….(iii) (As a 2  , think) (i) As,  f " 2 6  [using (iii) in (i)]    6 2 a 6 a 1    . (ii) Using (i) in (ii), we get   3 5 b a b 2 2     .    5 2 3 1 5 321 x 1 dx 2 64          