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Grade 12Mechanics

sinx.log(sinx)dx=log2-1
Limit of integration:0 to pi/2

Profile image of Venu Choudhary
7 Years agoGrade 12
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2 Answers

Profile image of Saurabh Koranglekar
7 Years ago
Dear student

Please ask a question
Profile image of Phanindra
7 Years ago
Put sinx = t... (1)then limits also will change...
Lower limit = 0 and upper limit = 1 
Now.. differentiate (1) that is cosxdx=dt  so..
dx = dt/cosx = dt/\sqrt{}(1-t^2)… 
Because ...sin2x + cos2x = 1...cosx = \sqrt{}(1-t^2)
Now the question chages and its limits are...0 and 1...
Hope you have understood the steps...
This is the procedure...
You will get the answer..
If you do not get the answer..then tell me.i will send the full solution..