4 Maths -- Derivatives

Binary operation is 0 defined on R by aob=ab(a-b) for a,b belonging to R. find identity element of 3.

Binary operation is 0 defined on R by aob=ab(a-b) for a,b belonging to R. find identity element of 3.

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More questions on Derivatives

Arc tan sinhx.

=Arc tan sinhx

let y= arc tan sinhx

differentiating with respect to x,then

dy/dx=d(arc tan sinhx0/dx

dy/dx=d(arc tan sinhx)/d(sinhx) *d(sinhx0/dx

dy/dx=1/(1+sinhx)* coshx

dy/dx=coshx/cosh^2x=sechx

answer..

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