Find the sum: ( -9) +(-11)+ 16 +5
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1
Answer:
S16=16/2[2(2)+(16-1)(3)]. =>8[4+ 15×3]. =>8(4+45). =>8×49. S16 =>392. sum of 16 terms of the given A P =392.
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Answer:
-9+ -11 +16 + 5= 1
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