the first and last terms of an AP are 1 and 12 respectively find (a)...
the first and last terms of an AP are 1 and 12 respectively find (a)...
the first and last terms of an AP are 1 and 12 respectively find (a) the number of terms in the AP (b) the common difference between them if the sum of its terms is (I) 594(ii) 671 (iii) 847 (iv) 1281?
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