Question

TOLONGIN TUGAS MTK TINGGAL 2 LAGI PLS...BESOK DIKUMPULIN
#NOSPAM!!
#THXX

Answer 1

15. (1/2y+1/2z)/(4y^2-4z^2)=((z+y)/(2yz))/(4y^2-4z^2)=(z+y)/(2yz)(2)(y^2-z^2)
=(z+y)/(4yz)(y+z)(y-z)
=1/(4yz)(y-z)
=1/4y^2z-4yz^2

16.(x^2/y)+(y^2/x)/(1/xy)-(1/y^2)=((x^3+y^3)/(xy))/((-(-y^2+xy)/(xy^3))
=((-(x^3+y^3)xy^2))/(x(y^2+xy))
=-y^3x^2