approximate the definite integrals. Make a table of values showing your intervals that you used. 20....

  

 

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approximate the definite integrals. Make a table of values showing your intervals that you used. 20. Approximate (2xsin x)dx using four subintervals of equal length and a Right Hand Riemann sum. 21. Approximate 0 [16x) dx using four subintervals of equal length and a Trapezoidal sum. approximate the definite integrals. Make a table of values showing your intervals that you used. 20. Approximate (2xsin x)dx using four subintervals of equal length and a Right Hand Riemann sum. 21. Approximate 0 [16x) dx using four subintervals of equal length and a Trapezoidal sum.