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Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 3 questions will be solved this time.Among them
☆3 arithmetic calculations
[1/3 Formula]
Work: Calculate the value of equation 1*2*3*4*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1 .
Question type: Mathematical calculation
Solution:
1*2*3*4*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=2*3*4*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=6*4*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=24*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=120*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=720*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=5040*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+6*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+24*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+120*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+720*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+6*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+24*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+120*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+600+1*2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+600+2*3*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+600+6*4*4+1*2*3*3+1*2*2+1*1
=35280+4320+600+24*4+1*2*3*3+1*2*2+1*1
=35280+4320+600+96+1*2*3*3+1*2*2+1*1
=35280+4320+600+96+2*3*3+1*2*2+1*1
=35280+4320+600+96+6*3+1*2*2+1*1
=35280+4320+600+96+18+1*2*2+1*1
=35280+4320+600+96+18+2*2+1*1
=35280+4320+600+96+18+4+1*1
=35280+4320+600+96+18+4+1
=39600+600+96+18+4+1
=40200+96+18+4+1
=40296+18+4+1
=40314+4+1
=40318+1
=40319
Answer:1*2*3*4*5*6*7*7+1*2*3*4*5*6*6+1*2*3*4*5*5+1*2*3*4*4+1*2*3*3+1*2*2+1*1=40319
[2/3 Formula]
Work: Calculate the value of equation 2+22+222+2222+22222+222222 .
Question type: Mathematical calculation
Solution:
2+22+222+2222+22222+222222
=24+222+2222+22222+222222
=246+2222+22222+222222
=2468+22222+222222
=24690+222222
=246912
Answer:2+22+222+2222+22222+222222=246912
[3/3 Formula]
Work: Calculate the value of equation 1+21+321+4321+54321+654321+7654321+87654321 .
Question type: Mathematical calculation
Solution:
1+21+321+4321+54321+654321+7654321+87654321
=22+321+4321+54321+654321+7654321+87654321
=343+4321+54321+654321+7654321+87654321
=4664+54321+654321+7654321+87654321
=58985+654321+7654321+87654321
=713306+7654321+87654321
=8367627+87654321
=96021948
Answer:1+21+321+4321+54321+654321+7654321+87654321=96021948