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1-prove-that-a-b-R-2-sinb-sina-b-a-2-let-give-the-sequence-x-0-0-and-x-n-1-a-1-2-sin-x-n-prove-that-for-m-n-x-m-x-n-a-2-n-1-3-prove-that-x-n-is-convergent-an




Question Number 33596 by abdo imad last updated on 19/Apr/18
1) prove that ∀(a,b)∈R^2     ∣sinb −sina∣≤∣b−a∣  2)let give the sequence  x_0 =0 and  x_(n+1) =a +(1/2)sin(x_n ) prove that for m≥n  ∣x_m  −x_n ∣ ≤  ((∣a∣)/2^(n−1) )  3) prove that (x_n ) is convergent and its limit is solution  of the equation  x = a +(1/2) sinx .
1)provethat(a,b)R2sinbsina∣⩽∣ba2)letgivethesequencex0=0andxn+1=a+12sin(xn)provethatformnxmxna2n13)provethat(xn)isconvergentanditslimitissolutionoftheequationx=a+12sinx.

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