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I need to figure out how to prove tan(x/2)= sinx/1+cosx thank you!? Gkhvfyjhg? A painter has 6 different colors of paint on his table. He mixes 3 colors together. How many combinations of colors are possible? How do I find the mph pace for walking 2 miles in 33 minutes and 30 seconds? Chemistry!
Calculate the pH at the equivalence point in the titration of 55.0 mL of 0.180 M methylamine
(Kb = 4.4 × 10−4) with 0.330 M HCl.?