u 12 14. Domain of the explicit for...
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u 12 14. Domain of the explicit form of the function y represented implicitly by (1 + x) cos y - x2 = 0 is: the equation (a) (-1,1] (0) (-1,0) (0) (-11-25 © 14v5] () [0, 1405]

JEE/Engineering Exams
Maths
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( operatorname{ses} y=frac{x^{2}}{1+x} ) ( -1 leq cos y leq frac{1}{2} ldots 1-n ) When woy ( =-1 ), ( x^{2}+x+1=0 ) When wy ( =1 ), ( x^{2}-x-1=0 ) ( x=frac{1 pm sqrt{5}}{2} ) [ begin{array}{l} frac{left(2^{1}right)^{5}-1 frac{15}{2}^{5}}{x inleft[frac{1-sqrt{5}}{2}, frac{1+sqrt{5}}{2}right]}{2} end{array} ]
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