Which of the following is equivalent to
2 answers:
Answer:
Choice B is correct.
Step-by-step explanation:
Given expression is
18-√-25
We have to simplify it.
As we know that
√-a=√-1.√a
Since we know that √-1=i
Hence,√-a=√ai
we can simplify given expression by using above equation.
18-√-25
18-√-1√25
18-i√25
18-√25i
As 25 is square of 5.
Hence ,
18-5i which is the answer.
Answer:
Option (2) is correct.

Step-by-step explanation:
Given expression 
We have to find an equivalence value to the expression.
<u> Radical rule</u>,
Also,
Consider the given expression,

Applying radical rule to

Thus, the expression becomes,

Thus, option (2) is correct.
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