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Given below are pairs of statements. In each case, combine them using 'if and only if'. (i) p: In ΔABC, ∠B=∠C. q: In ΔABC, AC=AB. (ii) p: A and B are two sets such that A⊆B and B⊆A. q: A=B. (iii) p: ΔABC is equilateral. q: ΔABC is equiangular. (iv) p: {a∈R such that|a|<2}. q: {a∈R such that(a>−2 and a<2)}. |
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Answer» Given below are pairs of statements. In each case, combine them using 'if and only if'. (i) p: In ΔABC, ∠B=∠C. q: In ΔABC, AC=AB. (ii) p: A and B are two sets such that A⊆B and B⊆A. q: A=B. (iii) p: ΔABC is equilateral. q: ΔABC is equiangular. (iv) p: {a∈R such that|a|<2}. q: {a∈R such that(a>−2 and a<2)}. |
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