Natural Deduction: Derive the conclusions of the following arguments using the rules of inference and the rules of replacement.

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)