Jika x = -5 dan y = 2 , hitunglah: a. x^-1 b. 2y^-3 x^2

Question

Matematika Diposting : 2017-08-09 Diupdate : 2022-08-23 angeliluviana

Pertanyaan

Jika x = -5 dan y = 2 , hitunglah:
a. x^-1
b. 2y^-3 x^2

Answer 1

a. x^-1 = 1/x = 1/-5

b. 2y^-3 x^2
= 2 . 1/y^3 . x^2
= 2 . 1/2^3 . (-5)^2
= 2 . 1/8 . 25
= 25/4