Qf(x)= x³ × x(6) ÷ x!!f(7)=....("hari ini sungguh tidak ada yang menyenangkan . semuanya tampak meng.... Question from @hendra5551

July 2022 2 11 Report

Q

f(x)= x³ × x(6) ÷ x!!
f(7)=....

("hari ini sungguh tidak ada yang menyenangkan . semuanya tampak mengecewakan saja")

Moumoci

Penyelesaian soal :

$\sf f(x) = x {}^{3} \times x(6) \div x!!$

$\sf f(7) = x {}^{3} \times x(6) \div x!!$

$\sf = 7 {}^{3} \times 7(6) \div 7!!$

$\sf = 7 {}^{3} \times (7 \times 6) \div (7 \times 5 \times 3 \times 1)$

$\sf = 7 {}^{3} \times (7 \times 6) \div (105 \times 1)$

$\sf = 7 {}^{3} \times 42 \div 105$

$\sf = 343\times 42 \div 105$

$\sf = 14.406 \div 105$

$\sf = 137,2$

$\\$

Tysm!

2 votes Thanks 4

Lonely0105

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f(x) = x³ × x(6) : x!!

f(7) = 7³ × 7(6) : 7!!

f(7) = (7 × 7 × 7) × (7 × 6) : (7 × 5 × 3 × 1)

f(7) = (49 × 7) × 42 : (35 × 3)

f(7) = 343 × 42 : 105

f(7) = 14.406 : 105

f(7) = 137,2

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2 votes Thanks 4

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