Sketch the level curves 
of the function for the indicated values of k. 
Definitions:
Exposed
Left unprotected or vulnerable to harm, danger, or negative influences.
Sports
Competitive physical activities or games which, through casual or organized participation, aim to use, maintain, or improve physical ability and skills while providing enjoyment to participants.
Gene-environment Correlation
The relationship between individuals’ genetic makeup and their environmental exposure that can influence their traits or behaviors.
Artistic Endeavors
Creative activities or projects that involve the arts, such as painting, music, dance, or writing.
Q15: Find the radius of convergence and the
Q24: Find <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5971/.jpg" alt="Find .
Q30: Use a graph to estimate the values
Q44: Determine whether the series is absolutely convergent,
Q56: Find the first partial derivatives of the
Q66: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5971/.jpg" alt="Solve
Q81: A projectile is fired from a height
Q90: Test the series for convergence or divergence.
Q98: Use Stoke's theorem to evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5971/.jpg"
Q118: Show that F is conservative and find