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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 ln1-ln2+ln3-ln4+ln5-ln6+ln7-ln8+ln9 .
Question type: Mathematical calculation
Solution:
ln1-ln2+ln3-ln4+ln5-ln6+ln7-ln8+ln9
=0-ln2+ln3-ln4+ln5-ln6+ln7-ln8+ln9
=0-0.693147+ln3-ln4+ln5-ln6+ln7-ln8+ln9
=0-0.693147+1.098612-ln4+ln5-ln6+ln7-ln8+ln9
=0-0.693147+1.098612-1.386294+ln5-ln6+ln7-ln8+ln9
=0-0.693147+1.098612-1.386294+1.609438-ln6+ln7-ln8+ln9
=0-0.693147+1.098612-1.386294+1.609438-1.791759+ln7-ln8+ln9
=0-0.693147+1.098612-1.386294+1.609438-1.791759+1.94591-ln8+ln9
=0-0.693147+1.098612-1.386294+1.609438-1.791759+1.94591-2.079442+ln9
=0-0.693147+1.098612-1.386294+1.609438-1.791759+1.94591-2.079442+2.197225
=-0.693147+1.098612-1.386294+1.609438-1.791759+1.94591-2.079442+2.197225
=0.405465-1.386294+1.609438-1.791759+1.94591-2.079442+2.197225
=-0.980829+1.609438-1.791759+1.94591-2.079442+2.197225
=0.628609-1.791759+1.94591-2.079442+2.197225
=-1.16315+1.94591-2.079442+2.197225
=0.78276-2.079442+2.197225
=-1.296682+2.197225
=0.900543
Answer:ln1-ln2+ln3-ln4+ln5-ln6+ln7-ln8+ln9=0.900543