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Verified answer
Jawab(2ⁿ⁺² - 2ⁿ⁻²) / (2ⁿ⁺¹ (2⁻³ - 2)) =
= 2ⁿ (2² - 2⁻²) / 2ⁿ. 2(2⁻³ - 2)
= (2² - 2⁻²) / ( 2⁻² - 2²)...kalikan 2²/2²
= (2⁴ - 2⁰) / (2⁰ - 2⁴)
= (16 - 1)/(1 - 16)
= 15/- 15
= - 1