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It supports mathematical functions (including trigonometric functions).
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 -100+20/(1+0.2)+40/(1+0.2)^2+50/(1+0.2)^3+60/(1+0.2)^4 .
Question type: Mathematical calculation
Solution:
-100+20/(1+0.2)+40/(1+0.2)^2+50/(1+0.2)^3+60/(1+0.2)^4
=-100+20/1.2+40/(1+0.2)^2+50/(1+0.2)^3+60/(1+0.2)^4
=-100+20/1.2+40/1.2^2+50/(1+0.2)^3+60/(1+0.2)^4
=-100+20/1.2+40/1.2^2+50/1.2^3+60/(1+0.2)^4
=-100+20/1.2+40/1.2^2+50/1.2^3+60/1.2^4
=-100+20/1.2+40/1.44+50/1.2^3+60/1.2^4
=-100+20/1.2+40/1.44+50/1.728+60/1.2^4
=-100+20/1.2+40/1.44+50/1.728+60/2.0736
=-100+16.666667+40/1.44+50/1.728+60/2.0736
=-100+16.666667+27.777778+50/1.728+60/2.0736
=-100+16.666667+27.777778+28.935185+60/2.0736
=-100+16.666667+27.777778+28.935185+28.935185
=-83.333333+27.777778+28.935185+28.935185
=-55.555555+28.935185+28.935185
=-26.62037+28.935185
=2.314815
Answer:-100+20/(1+0.2)+40/(1+0.2)^2+50/(1+0.2)^3+60/(1+0.2)^4=2.314815