Q.
Let g(x)=∫1+2cosx(cosx+2)2dx and g(0)=0 . Then the value of g(3π/2) is
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answer is -0000.50.
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Detailed Solution
g(x)=∫1+2cosx(cosx+2)2dx=∫cosec2x+2cotxcosecx(cotx+2cosecx)2dx (Dividing numerator and denominator by sin2x ) =1cotx+2cosecx+Cg(x)=sinxcosx+2+C Since g(0)=0 , we get that C=0 So, g(x)=sinxcosx+2∴g(3π/2)=−12
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