Question

find the compound interest on Rs 12000 for 2years at the rate of 20% per auunm , interest being payable half years ​

Answer 1

Answer:

using the change of the variables u=x-y & v=x+y, evaluate the integral double integration R (x-y)e^(x^2-y^2) dA where R is the region bounded by the lines x+y=1 & x+y=3& the curves x^2-y^2=-1&x^2-y^2=1

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