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Aric
Questions (2)
Find the slope of the tangent line to the curve (a lemniscate)
2(x^2+y^2)^2 = 25(x^2-y^2) it is at pt (3,1)
3 answers
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Let f(x) = [(2x2+4 x −70)/(x−5)]
Show that f(x) has a removable discontinuity at x=5 and determine what value for f(5) would
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Answers (2)
tyvm
:4(x² + y²)(2x + 2y dy/dx) = 25(2x - 2y dy/dx). :4[(3)² + (1)²][2(3) + 2(1)dy/dx] = 25[2(3) - 2(1)dy/dx] :4[9 + (1)][6 + 2 dy/dx] = 25[6 - 2 dy/dx] :4[10][8 dy/dx] = 25[4 dy/dx] Divide both sides by 10 :4[8 dy/dx] = 10[dy/dx] :32[dy/dx] = 10 [dy/dx]
