Ex 7.9, 18 - Class 12
Last updated at May 29, 2018 by Teachoo
Transcript
Ex7.9, 18 0𝜋 s𝑖𝑛2 𝑥2− cos2 𝑥2 𝑑𝑥 Step 1 :- Let F 𝑥= sin2 𝑥2− cos2 𝑥2𝑑𝑥 =− cos2 𝑥2− sin2 𝑥2𝑑𝑥 =− cos𝑥𝑑𝑥 =− sin𝑥 Hence F 𝑥=− sin𝑥 Step 2 :- 0𝜋 𝑠𝑖 𝑛2 𝜋2−𝑐𝑜 𝑠2 𝑥2𝑑𝑥=𝐹 𝜋−𝐹 0 =− 𝑠𝑖𝑛 𝜋+ 𝑠𝑖𝑛 0 =− 0+0 = 𝟎
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.