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Given the for a,b,c,d in R, if a sec(200...

Given the for `a,b,c,d in R,` if a `sec(200^@)- ctan(200^@)=d and b sec(200^@)+d tan(200^@)= c,` then find the value of `((a^2+b^2+c^2+d^2)/(b d-a c))sin2 0^(@)`.

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