Find Dy
- $$y = \cos ( 3 \sqrt { x } )$$

question 386

Multiple Choice

Find dy.
- $$y = \cos ( 3 \sqrt { x } )$$

• A) \(\left( \frac { 3 \sin ( 3 \sqrt { x } ) } { 2 \sqrt { x } } \right) d x\)
• B) \(\left( \frac { - 3 \sqrt { x } \sin ( 3 \sqrt { x } ) } { 2 } \right) d x\)
• C) \(\left( \frac { 3 \sqrt { x } \sin ( 3 \sqrt { x } ) } { 2 } \right) d x\)
• D) \(\left( \frac { - 3 \sin ( 3 \sqrt { x } ) } { 2 \sqrt { x } } \right) d x\)

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