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प्रश्न
Choose the correct alternative:
If A = {(x, y) : y = sin x, x ∈ R} and B = {(x, y) : y = cos x, x ∈ R} then A ∩ B contains
पर्याय
no element
infinitely many elements
only one element
cannot be determined
उत्तर
infinitely many elements
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