Answer:

Step-by-step explanation:
The expression in the square root should be greater than or equal to zero, because square root of a negative number does not give a real number.

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Answer:
an = 88+9
Step-by-step explanation:
Answer:
the answer is 456
Step-by-step explanation:
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Answer:
<h2>line AB is a chord</h2>
Step-by-step explanation:
Any line that segments a circle and joins two points at the circumference of a circle is called a chord.
line AB is a chord
While
line EC is a diameter
line DF is a radius