Question

jika a = 8, b =25 dan c= 1/9.
Tentukan hasil dari operasi c^-1 - 2b^½​

Answer 1

Jawaban:

Penyelesaian :

Diketahui :

• a = 8
• b = 25
• c = [tex] \sf \frac{1}{9}[/tex]

Jawaban :

[tex] \sf {c}^{ - 1} - 2 {b}^{ \frac{1}{2} } [/tex]

[tex] \sf = ( \red{ \frac{1}{9} } ){}^{ - 1} - 2( \red{25}) {}^{ \frac{1}{2} } [/tex]

[tex] \sf = ( {9}^{ - 1} ) {}^{ - 1} - 2( {5}^{2} ) {}^{ \frac{1}{2} } [/tex]

[tex] \sf = ( {9}^{1} ) - 2( {5}^{ \cancel{2}} ) {}^{ \frac{1}{ \cancel{2}} } [/tex]

[tex] \sf = 9 - 2( {5}^{1} )[/tex]

[tex] \sf = 9 - 2(5)[/tex]

[tex] \sf = 9 - 10[/tex]

[tex] \sf = \red{ - 1}[/tex]

'비상' (Svt)