If when using a partition from the closed interval [1,b] into n-subintervals, the sum 11+6n⋅6n+11+12n⋅6n+11+18n⋅6n+...…+1 1+6nn⋅6n is a Right Riemann Sum for the definite integral below, ∫b1f(x)dxusing a partition of the interval [1,b] into n subintervals of equal length. Then the upper limit of integration must be: b = and the integrand must be the function f(x) =

a

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

-1

step-by-step explanation:

answer: (x+2) (x+3) are the binomials for your question : )