Select all the true statements about identities.
A) You may use proven identities to prove other identities.
B) An identity is true only for restricted values of the variables.
C) You can prove an identity by graphing the side to the left of the equal sign, graphing the side to the right of the equal sign, and looking to see whether the two graphs coincide.
D) An identity is true regardless of the values you substitute for the variables.
+23254 You can also use prove identities to prove other identities.
An identity is true for all values of the identity.
Although it is true that the graph of the left side of the identity must be the same as the graph of the right side of the identity, just looking won't be good enough (because you will be looking at only a restricted portion of the graph and graphs might look identical at one scale but might look different at a smaller scale.
+23254 You can also use prove identities to prove other identities.
An identity is true for all values of the identity.
Although it is true that the graph of the left side of the identity must be the same as the graph of the right side of the identity, just looking won't be good enough (because you will be looking at only a restricted portion of the graph and graphs might look identical at one scale but might look different at a smaller scale.
