Tolong bantu jwb KK..... Question from @ajsksksjhsbsjs

October 2022 2 8 Report

Tolong bantu jwb KK.

monmonoz

a. -104

b. 5/6

Penjelasan dengan langkah-langkah:

a. (-5)³ + (-5)² + (-5)¹ + (-5)⁰

= -125 + 25 - 5 + 1

= -104

b. 2-¹ + 3-¹

= 1/2 + 1/3

= 3/6 + 2/6

= 5/6

1 votes Thanks 1

$\sf \: = {( - 5)}^{3} + {( - 5)}^{2} + {( - 5)}^{1} + {( - 5)}^{0}$

$\sf \: = ( - 125) + {( - 5)}^{2} + {( - 5)}^{1} + {( - 5)}^{0}$

$\sf = ( - 125) + 25 + {( - 5)}^{1} + {( - 5)}^{0}$

$\sf \: = ( - 125) + 25 + ( - 5) + {( - 5)}^{0}$

$\sf \: = ( - 125) + 25 + ( - 5) + 1$

$\sf \: = ( - 100) + ( - 5) + 1$

$\sf \: = ( - 105) + 1$

$\sf \: = ( -1 04)$

b.)

$\sf \: = {2}^{ - 1} + {3}^{ - 1}$

$\sf \: = \frac{1}{ {2}^{1} } + \frac{1}{ {3}^{1} }$

$\sf \: = \frac{1}{2} + \frac{1}{3}$

$\sf \: = \frac{1 \times 3}{2 \times 3} + \frac{1 \times 2}{3 \times 2}$

$\sf \: = \frac{3}{6} + \frac{2}{6}$

$\sf \: = \frac{5}{6}$

semoga bermanfaat

1 votes Thanks 1

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