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Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 arithmetic calculations
[1/1 Formula]
Work: Calculate the value of equation -15+6/1.25+10.5/1.25^2+12.3/1.25^3+10.2/1.25^4+12.6/1.25^5 .
Question type: Mathematical calculation
Solution:
-15+6/1.25+10.5/1.25^2+12.3/1.25^3+10.2/1.25^4+12.6/1.25^5
=-15+6/1.25+10.5/1.5625+12.3/1.25^3+10.2/1.25^4+12.6/1.25^5
=-15+6/1.25+10.5/1.5625+12.3/1.953125+10.2/1.25^4+12.6/1.25^5
=-15+6/1.25+10.5/1.5625+12.3/1.953125+10.2/2.44140625+12.6/1.25^5
=-15+6/1.25+10.5/1.5625+12.3/1.953125+10.2/2.44140625+12.6/3.0517578125
=-15+4.8+10.5/1.5625+12.3/1.953125+10.2/2.44140625+12.6/3.0517578125
=-15+4.8+6.72+12.3/1.953125+10.2/2.44140625+12.6/3.0517578125
=-15+4.8+6.72+6.2976+10.2/2.44140625+12.6/3.0517578125
=-15+4.8+6.72+6.2976+4.17792+12.6/3.0517578125
=-15+4.8+6.72+6.2976+4.17792+4.128768
=-10.2+6.72+6.2976+4.17792+4.128768
=-3.48+6.2976+4.17792+4.128768
=2.8176+4.17792+4.128768
=6.99552+4.128768
=11.124288
Answer:-15+6/1.25+10.5/1.25^2+12.3/1.25^3+10.2/1.25^4+12.6/1.25^5=11.124288