Question

Q.

6!! =
7!! =

nt :↓
[tex]selamat \: hari \: jumat \: agung[/tex]

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Answer 1

6!! = 6 x 4 x 2 = 24 x 2 = 487!! = 7 x 5 x 3 = 35 x 3 = 105

Answer 2

n!! = n × (n - 2) × (n - 4) × (n - 6) × ....- - - - -[tex]6!! \\ = 6 \times (6 - 2) \times (6 - 4) \\ = 6 \times 4 \times 2 \\ = 24 \times 2 \\ = \sf \red{48}[/tex]- - - - -[tex]7!! \\ = 7 \times (7 - 2) \times (7 - 4) \times (7 - 6) \\ = 7 \times 5 \times 3 \times 1 \\ = 35 \times 3 \times 1 \\ = 105 \times 1 \\ = \sf \red{105}[/tex]===