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Use the principle of mathematical induction to show that


| sin nx| ≀ n| sin x|


for all n∈ N and for all x ∈ R



Evaluate the line integral

βˆ«π’–(π‘₯, 𝑦, 𝑧) Γ— ⅆ𝒓 ,

where 𝒖(π‘₯, 𝑦, 𝑧) = (𝑦^2 , π‘₯, 𝑧) and the curve π‘ͺ is described by 𝒛 = 𝑦 = 𝑒 π‘₯ with π‘₯ ∈ [0,1].Β 



Show whether the following functions are uniformly continuous on the given domain.

1. F(x)=x^3 on [-1,1]

2. F(x)= 2x/2x-1 on [1, infinity]

3. F(x)= sinx/x on (0,1)

4. F(x)= 1/x on (0,1)



1,2,3,4,5;the abcissa is two less than the ordinate.What is the domain and range


Is the term (x+2) a factor of the polynomial shown below? f(x)=x^4+5x^3+10x^2+20x+24


Integral of sin(x^2)


Determine the interval of convergence for the power series

"\\displaystyle\\sum_{n=1}^ \u221e" 3n(x-1)n/(n+1)2

Determine for which value ofΒ "\\alpha"Β the given series converge absolutely, converge conditionally, or diverges.

  1. "\\displaystyle\\sum_{k=1}^ \u221e ((-1)"Β k+1 * "\\alpha^k" ) / k2
  2. "\\displaystyle\\sum_{k=1}^ \u221e ((\\alpha -1)^k\n\n\u200b" ) / k

For each of the following series, determine whether it is absolutely convergent, conditionally convergent, or divergent. Justify your answer.

  1. "\\displaystyle\\sum_{n=2}^ \u221e (-1)^n\/(n ln n)"

Find the integral surface of the equation x2p+y2q+z2=0 passing through z=1,x+y=xy


Answer with chain rule


Z = cos (xΒ² + yΒ²), x = u cos v, y = u sin v

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