If \( \cos x-y^{2}-\sqrt{y-x^{2}-1} \geq 0 \), then
(a) \( y \geq 1 \)
(b) \( x \in R \)
(c) \( ...
If \( \cos x-y^{2}-\sqrt{y-x^{2}-1} \geq 0 \), then
(a) \( y \geq 1 \)
(b) \( x \in R \)
(c) \( y=1 \)
(d) \( x=0 \)
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