Question

[2^2-√1 9/16:(-1 1/4)^2]*(-2 1/2)^3

wynik musi być -50!

Answer 1

[2^2-√1 9/16:(-1 1/4)^2]*(-2 1/2)^3 = [ 4 - √25/16 : (-5/4)^2] * (-5/2)^3 =

 

[ 4 - 5/4 : 25/16] * (-125/8) =(4 - 5/4 * 16/25) * (-128/8) = (4 - 4/5) * (-125/8) =

 

3 i 1/5 * (-125/8) = 16/5 * (-125/8) = -50