Simplify the Expression $$\frac { \sqrt { 252 } } { 7 } - \frac { 2 \sqrt { 7 } } { 7 } + \frac { \sqrt { 7 } } { \sqrt { 49 } }$$

question 59

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$\frac { \sqrt { 252 } } { 7 } - \frac { 2 \sqrt { 7 } } { 7 } + \frac { \sqrt { 7 } } { \sqrt { 49 } }$$

• A) \(\frac { 7 \sqrt { 7 } } { 7 }\)
• B) \(\frac { 5 \sqrt { 7 } } { 49 }\)
• C) \(- \frac { \sqrt { 245 } } { 7 }\)
• D) \(\frac { 5 \sqrt { 7 } } { 7 }\)

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Definitions:

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