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It supports mathematical functions (including trigonometric functions).
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Overview: 1 questions will be solved this time.Among them
☆1 arithmetic calculations
[1/1 Formula]
Work: Calculate the value of equation (C(4,2)*C(38,1)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3) .
Question type: Mathematical calculation
Solution:
(C(4,2)*C(38,1)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3)
=(6*C(38,1)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3)
=(6*38+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3)
=(6*38+4*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3)
=(6*38+4*703*0+C(4,3)*C(38,0)*1)/C(42,3)
=(6*38+4*703*0+4*C(38,0)*1)/C(42,3)
=(6*38+4*703*0+4*1*1)/C(42,3)
=232/C(42,3)
=232/11480
=0.020209
Answer:(C(4,2)*C(38,1)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*1)/C(42,3)=0.020209