Question

Calculați : a ) (-10) la -2 *[1/32: 1/8 +(-1/2) la2 * 3,5+ 3/4] =
b) 0,(5) :[(-3)la 6 * (-3) la3 ] la -2 =​

Answer 1

Răspuns:

Explicație pas cu pas:

a)=100*(1/32*8/1+1/4*35/10+3/4)=

=100*(1/4+1/4*35/10+3/4)=

=100*(1/4+35/40+3/4) = ( primul si al doilea nr din paranteza imultesti cu 10)

=100*(10/40+35/40+30/40)=

=100*(75/40)=

=375/2 = 187,5

b)=5/9:[-3/6*(-27)]^-2=

=5/9:(81/6)^-2=

=5/9:[1/(81/6)^2]=

=5/9:36/6561=

=3645/36 = 101,25