100 Cars That Changed the World: The Designs, Engines, and Technologies That Drive Our Imaginations

100 Cars That Changed the World: The Designs, Engines, and Technologies That Drive Our Imaginations

Matematika Rumus Suku ke-n dari barisan bilangan -81,-75,-69,63 ....

Rumus Suku ke-n dari barisan bilangan -81,-75,-69,63 ....

Penjelasan dengan langkah-langkah:

[tex] \: [/tex]

Rumus suku ke-n

Un = a + (n - 1)b

Un = -81 + (n - 1)(-75 - (-81)

Un = -81 + (n - 1)(6)

Un = -81 + 6n - 6

Un = -87 + 6n

Axlya :)

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