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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 √0.4*(-25%+2.8%)^2+0.4*(3%+2.8%)^2+0.2*(30%+2.8%)^2 .
Question type: Mathematical calculation
Solution:
√0.4*(-25%+2.8%)^2+0.4*(3%+2.8%)^2+0.2*(30%+2.8%)^2
=√0.4*(-0.222)^2+0.4*(3%+2.8%)^2+0.2*(30%+2.8%)^2
=√0.4*(-0.222)^2+0.4*0.058^2+0.2*(30%+2.8%)^2
=√0.4*(-0.222)^2+0.4*0.058^2+0.2*0.328^2
=0.632456*-0.222^2+0.4*0.058^2+0.2*0.328^2
=0.632456*0.049284+0.4*0.058^2+0.2*0.328^2
=0.632456*0.049284+0.4*0.003364+0.2*0.328^2
=0.632456*0.049284+0.4*0.003364+0.2*0.107584
=0.03117+0.4*0.003364+0.2*0.107584
=0.03117+0.001346+0.2*0.107584
=0.03117+0.001346+0.021517
=0.032516+0.021517
=0.054033
Answer:√0.4*(-25%+2.8%)^2+0.4*(3%+2.8%)^2+0.2*(30%+2.8%)^2=0.054033