Proponents of the alkaline diet suggest that a diet high in acid-producing foods disrupts the blood's normal pH level and, in turn, triggers the loss of essential minerals (such as calcium) as the body attempts to restore equilibrium. This imbalance is said to increase susceptibility to illness.
The law of cosines is useful for computing the third side of a triangle when two sides and their enclosed angle are known, and in computing the angles of a triangle if all three sides are known.
Case 2. Now consider the case when the angle at C is right. The cosine of a right angle is 0, so the law of cosines, c 2 = a 2 + b 2 &#150 2 ab cos C, simplifies to becomes the Pythagorean identity, c 2 = a 2 + b 2, for right triangles which we know is valid. Case 3. In this case we assume that the angle C is an acute triangle.