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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 0.9×2.1×21+1.8×2.1×6+1.2×2.1×2+0.7×2.1×18 .
Question type: Mathematical calculation
Solution:
0.9×2.1×21+1.8×2.1×6+1.2×2.1×2+0.7×2.1×18
=1.89×21+1.8×2.1×6+1.2×2.1×2+0.7×2.1×18
=39.69+1.8×2.1×6+1.2×2.1×2+0.7×2.1×18
=39.69+3.78×6+1.2×2.1×2+0.7×2.1×18
=39.69+22.68+1.2×2.1×2+0.7×2.1×18
=39.69+22.68+2.52×2+0.7×2.1×18
=39.69+22.68+5.04+0.7×2.1×18
=39.69+22.68+5.04+1.47×18
=39.69+22.68+5.04+26.46
=62.37+5.04+26.46
=67.41+26.46
=93.87
Answer:0.9×2.1×21+1.8×2.1×6+1.2×2.1×2+0.7×2.1×18=93.87