Quick practice
Question 1 of 5
Which of the following statements correctly defines standard identities?
1. Both sides of the equation contain the same number of variables.
2. When variables are substituted with numbers, one side is more than the other side.
3. When variables are substituted with numbers, both sides give the same value.
A
(1) and (2)
B
(1), (2) and (3)
C
(2) and (3)
D
(3) and (1)
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