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How to solve this both problem?​

How To Solve This Both Problem class=

Sagot :

#9

#a

[tex]\\ \sf\longmapsto (y+2z)^3[/tex]

[tex]\\ \sf\longmapsto y^3+2z^3+3y^2(2z)+3y(2z)^2[/tex]

[tex]\\ \sf\longmapsto y^3+8z^3+6y^2z+12yz^2[/tex]

#b

Refer to attachment

#10

  • x=y
  • x=40°(Corresponding angle)
  • y=x=40°
View image Аноним