Product Rule. If the two functions f(x) and g(x) are differentiable (i.e. the derivative exist) then the product is differentiable and, The proof of the Product Rule is shown in the Proof of Various Derivative Formulas section of the Extras chapter.
Inflammation is the most common reason for muscle pain and aches. Any time that major inflammation exists (strep throat, hepatitis, cancer, lupus, acute heart attack, etc.), signs and symptoms often include fevers, sweats, chills, fatigue, weight loss, and various muscle aches, pains and weakness.
People with lupus have periods in which they are feeling well, called remission, and periods of worsening symptoms, called flares. Lupus patients can often predict the onset of flares due to specific warning signs, such as worsening fatigue and/or onset of headache, fever, dizziness, rash, and/or pain (Phillips 1991).YPES OF LUPUS. The term lupus commonly refers to systemic lupus erythematosus, or SLE, but there are other types of lupus as well, each with distinct signs and symptoms (Firestein 2009). Systemic lupus erythematosus (SLE). This is the disease often simply referred to as lupus.