Use the graph to determine the domain and range of the relation, and whether the relation is a function
1 answer:
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Given:
The equation is
To find:
The error and correct solution.
Solution:
We have,
Add 16 on both sides.
Divide both sides by -5.
Third step is incorrect because he divide the equation by 5 instead of -5.
Therefore, the correct solution is .
Answer:
where n∈Z.
Step-by-step explanation:
2sin²x-1; ⇒ sin²x=1/2;