Mathematical Chat-up Lines

Try these at your own risk (and report the results here):

• "If I were sin^2 and you were cos^2 together we would be 1."
• "I wish I were your derivative sp that I could lie tangent to your curves."
• "That dress would look even better at 32 feet per second per second."

(My thanks to Daniel for sending me these, from a letter to the Times from Dom Rowland and Ed Smith of Trinity College, Cambridge.)