Use the Substitution Formula to Evaluate the Integral $$\int _ { 0 } ^ { 1 } \frac { 4 \mathrm { rdr } } { \sqrt { 4 + 2 \mathrm { r } ^ { 2 } } }$$

question 90

Multiple Choice

Use the substitution formula to evaluate the integral.
- $$\int _ { 0 } ^ { 1 } \frac { 4 \mathrm { rdr } } { \sqrt { 4 + 2 \mathrm { r } ^ { 2 } } }$$

• A) \(- 2 \sqrt { 6 } + 4\)
• B) \(\sqrt { 6 } - 2\)
• C) \(\frac { \sqrt { 6 } } { 2 } - 1\)
• D) \(2 \sqrt { 6 } - 4\)

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