Please someone help me (trigonometry)
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Please someone help me (trigonometry)

[From: ] [author: ] [Date: 11-06-22] [Hit: ]
......
about function and relation
function is where x and it's given are never repeated
example:
X:4 5 6 7
y: 4 5 6 7
while in relation the x's givens are repeated
example:
x: 4 8 7 and 4 (again)
y: 4 8 7 4

now what are the ways in describing functions?
please give me an example

-
no x's repeat
fail the vertical line test
1
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