Ex 7.9, 20 - Chapter 7 Class 12 Integrals
Last updated at March 11, 2017 by Teachoo
Transcript
Ex7.9, 20 _0^1 ( ^ +sin /4 ) Step 1 :- Let F( )= 1 ( ^ + /4 ) = 1 ^ + 1 /4 Solving 1 ^ Integration by parts 1 ^ = 1 ^ 1 [( / ) 1 ^ ] = ^ 1 (+1. ^ ) = ^ 1 ^ = ^ ^ = ^ ( 1) Therefore, F( )= 1 ^ + 1 /4 = ^ ( 1)+1/( /4) ( /4) = ^ ( 1) 4/ /4 Hence, F( )= ^ ( 1) 4/ /4 Step 2 :- _0^1 ( ^ + /4) = (1) (0) = ^1 (1 1) 4/ (( 1))/4 ^0 (0 1)+4/ (( 0))/4 = 0 4/ (( ))/4 1( 1)+4/ cos 0 =( 4)/( ) (( ))/4+1+4/ =( 4)/( ) 1/ 2+1+4/ = + / ( )/
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