WebWhen you had d x = x d u the x should be replaced by e u before you place it back into the integral. If we start with the integral. ∫ sin ( ln ( x)) d x. we can use the substitution u = ln ( x) which gives d u = ( 1 / x) d x and d x = x d u = e u d u. Thus the integral becomes: ∫ sin ( u) e u d u. Integration by parts performed twice ... Webcos(x) Natural Language; Math Input; Extended Keyboard Examples Upload Random. Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…
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WebJust for practice, I tried to derive d/dx (tanx) using the product rule. It took me a while, because I kept getting to (1+sin^2 (x))/cos^2 (x), which evaluates to sec^2 (x) + tan^2 (x). … Webthe derivative of cos (x) x = Low dHigh minus High dLow square the Low = x (−sin (x)) − cos (x) (1) x2 = − xsin (x) + cos (x) x2 Reciprocal Rule Example: What is d dx (1/x) ? The Reciprocal Rule says: the derivative of 1 f = −f’ f2 With f (x)= x, we know that f’ (x) = 1 So: the derivative of 1 x = −1 x2 1呃0
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Webx2-8x-2=0 Two solutions were found : x = (8-√72)/2=4-3√ 2 = -0.243 x = (8+√72)/2=4+3√ 2 = 8.243 Step by step solution : Step 1 :Trying to factor by splitting the middle term ... 2x2-8x-2=0 Two solutions were found : x = (4-√20)/2=2-√ 5 = -0.236 x = (4+√20)/2=2+√ 5 = 4.236 Step by step solution : Step 1 :Equation at the end of ... WebFree Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step WebFree math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. 1呉市