My answer is coming 0. Please explain.
yes yes answer is 8..sorry..anser is 8.i just calculated it. :) previously i did silly thing,basically i didnot calculated it,as there is no qs of pi,so ans i thought will be 0..answer is 8 only.4 ranges. 0 to pi/2 , pi/2 to pi , pi to 3pi/4,3pi/4 to pi.first 0 to pi/2 (sinx +cosx) ,then pi/2 to pi (-sinx + cosx) ,then pi to 3pi/4 ( -sinx - cosx) and lastly 3pi/4 to pi (-sinx +cosx ) ...by integrating those and applying ranges answer will be 8 only
Its Simple just draw the graph for this. You will find (|Sinx|+|Cosx|) is always greater than 1. So value of [|Sinx|+|Cosx|] will always be 1. So 0 to 2pie the value will be 1*2Pie.
ans 8
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This might help..