Answer:
1. A 2.C
Step-by-step explanation:
This equation has an infinite number of solutions, so it will be categorized as an identity.
Answer:
r = 1
Step-by-step explanation:
In this question, we have to solve for the vallue of "r". We will use the distributive property shown below to ease our process.
Distributive Property:
a(b+c) = ab + ac
Now, lets solve this:

As we have seen the value of r is "1"
Answer:
Đường thãng oc là gì đối với ab ?tại sa