The symbol "ϕ"
The symbol ϕ represents a mathematical rule.
The rule for ϕ is “add the two numbers and then multiply their sum by the second number”.
For example, 2 ϕ 3 = (2 + 3) × 3 = 5 × 3 = 15
Work out:
1) 2 ϕ 6
2) 1/2 ϕ 3
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1)2 ϕ 6 would just be:
ReplyDelete(2 + 6) x 6 = 8 x 6 = 48.
2) 1/2 ϕ 3 would be:
(1/2 + 3) x 3 = 3.5 x 3 = 10.5