Matematika

Pertanyaan

tolong jawab mana yg kalian bisa.pake cara nya.ini di bab pangkat tak sebenarnya
tolong jawab mana yg kalian bisa.pake cara nya.ini di bab pangkat tak sebenarnya

1 Jawaban

  • a).
    [tex] = \frac{ {x}^{5} }{ {x}^{ - 3} } \\ = {x}^{5} . {x}^{3} \\ = {x}^{5 + 3} \\ = {x}^{8} [/tex]
    b).
    [tex] = \frac{ {x}^{ - 3} {y}^{2} }{ {x}^{ - 5 } {y}^{ - 1} } \\ = {x}^{ (- 3 + 5)} {y}^{(2 + 1)} \\ = {x}^{2} {y}^{3} [/tex]
    c).
    [tex] = \frac{2 {x}^{2} {y}^{2} }{( {x}^{3} {y}^{2} )^{2} } \\ = \frac{2 {x}^{2} {y}^{2}}{ {x}^{6} {y}^{4} } \\ = 2 {x}^{(2 - 6)} {y}^{(2 - 4)} \\ = 2 {x}^{ - 4} {y}^{ - 2} \\ = \frac{2}{ {x}^{4} {y}^{2} } [/tex]