Question

Tinh nhanh

(2013 nhan 2014 nhan 2015) nhan (1-1/3-1/2-1/6)

 

Answer 1

\((2013\cdot2014\cdot2015)\cdot(1-\frac{1}{3}-\frac{1}{2}-\frac{1}{6})\)

\(=(2013\cdot2014\cdot2015)\cdot(\frac{6}{6}-\frac{2}{6}-\frac{3}{6}-\frac{1}{6})\)

\(=(2013\cdot2014\cdot2015)\cdot(\frac{6-2-3-1}{6})\)

\(=(2013\cdot2014\cdot2015)\cdot0=0\)

Answer 2

    ( 2013 × 2014 × 2015 ) × ( 1 - 1/3 - 1/2 - 1/6 )

= ( 2013 × 2014 × 2015 ) × ( 6/6 - 2/6 - 3/6 - 1/6)

= ( 2013 × 2014 × 2015 ) × 6 - 2 - 3 - 1/6

= ( 2013 × 2014 × 2015 ) × 0

= 0

Answer 3

 (2013x2014x2015)x(1-1/3-1/2/-1/6)

=(2013x2014x2015)x(2/3-1/2-1/6)

=(2013x2014x2015)x(4/6-3/6-1/6)

=(2013x2014x2015)x(1/6-1/6)

=(2013x2014x2015)x0

=0