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Find the 11th tern of an AP -5, -5/2, 0, 5/2,...... |
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Answer» 11th term = 20 Find difference by subtracting first term from second term .then d=5/2,a=-5 and n=11.so An=a+(n-1)d.put the value=An=-5+(11-1)*5/2,then An=-5+(10*5/2), then An=-5+25=20ans.... 20 Can u explain?? 20is the answer |
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