Ex 7.9, 21 - Chapter 7 Class 12 Integrals
Last updated at May 29, 2018 by Teachoo
Transcript
Ex7.9, 21 Choose the correct answer 1 3 1 + 2 equals (A) 3 (B) 2 3 (C) 6 (D) 12 Step 1 :- Let F = 1 + 2 = tan 1 Hence F = 1 Step 2 :- 1 3 1 + 2 = 3 1 = tan 1 3 tan 1 1 = 3 4 = 12 Option (D) is correct.
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