S = d1*d2*Sina
d2 = S/(d1*Sina) = 22,5/(12*5/12) = 4,5
<span>( 9*10^-2)^2= 9*10^(-2*2)=9*10^(-4)
</span><span>9*10(-4)*(11*10^5)=99*10^(-4+5)=99*10^1=990</span>
№58
3) =√(14*2*28) = √(14*2*2*14) = 14*2 = 28
4)√(13/15*2/5*26/3) = √(13*2*26)/(15*5*3) = 26/15
№59
2)√6⁸ = 6⁴1296
4)0,25* √ 4¹⁰ = 0,25*4⁵ = 0,25*1024 = 256
№60
2) = 9/ (14*8) = 9/112
4) = (8*20)/(11*19) = 160/209