Ex 7.11, 13
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 7.11, 13 By using the properties of definite integrals, evaluate the integrals : − 𝜋2 𝜋2 sin7𝑥 𝑑𝑥 This is of form −𝑎𝑎𝑓 𝑥𝑑𝑥 𝑓 𝑥= sin7𝑥 𝑓 −𝑥= sin7 −𝑥= −𝑠𝑖𝑛𝑥7= −17 𝑠𝑖𝑛𝑥7=− sin7𝑥 Thus, 𝑓 −𝑥 =− 𝑓 𝑥 ∴ −𝜋2 𝜋2 sin7𝑥 𝑑𝑥=𝟎
About the Author
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .