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Domain of the explicit from of the funct...

Domain of the explicit from of the function `y` represented implicity by the equation `(1+x)cos y-x^2=0` is-
a.`(-1,\ 1]` b. `(-1,(1-sqrt(5))/2]` c.`[(1-sqrt(5))/2,(1+sqrt(5))/2]` d. `[0,(1+sqrt(5))/2]`

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