find the sum of series:1×2×3+2×3×4+3×4×5+-----+8×9×10
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0
Answer:
the sum of the series is 1980
Answered by
1
Answer:
2080
Step-by-step explanation:
1×2×3+2×3×4+3×4×5+------+8×9×10
1×2×3+2×3×4+3×4×5+4×5×6+5×6×7+6×7×8+7×8×9+8×9×10+9×10+10
=6+24+60+120+210+336+504+720+90+10
= 2080
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