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If n(A)=3, n(B)=4, then write n(AxxAxxB)...

If `n(A)=3, n(B)=4,` then write `n(AxxAxxB)` .

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RD SHARMA ENGLISH-RELATIONS-All Questions
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  3. If A={1,2,4},\ B={2,4,5}a n d\ C={2,5},\ write (A-B)xx(B-C)dot

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  4. If n(A)=3, n(B)=4, then write n(AxxAxxB) .

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