Thinking Mathematically - Marquette University High School
... Step 3: SUBSTITUTE this expression into that variable in Equation B Equation B now becomes 7x – 2( 3x + 1 ) = - 4 Step 4: Solve for the remaining variable Step 5: Back-substitute this coordinate into Step 2 to find the other coordinate. (Or plug into any equation but step 2 is ...
... Step 3: SUBSTITUTE this expression into that variable in Equation B Equation B now becomes 7x – 2( 3x + 1 ) = - 4 Step 4: Solve for the remaining variable Step 5: Back-substitute this coordinate into Step 2 to find the other coordinate. (Or plug into any equation but step 2 is ...
y + p(x)y = r(x) • y = y
... Let W = e p(x)dx . Then W 0 =R pW , by the rule (ex )0 = ex , the chain rule and the fundamental theorem of calculus ( p(x)dx)0 = p(x). Let’s prove (W Y )0 /W = Y 0 + pY . The derivative product rule implies ...
... Let W = e p(x)dx . Then W 0 =R pW , by the rule (ex )0 = ex , the chain rule and the fundamental theorem of calculus ( p(x)dx)0 = p(x). Let’s prove (W Y )0 /W = Y 0 + pY . The derivative product rule implies ...
