Am trying to find the value of r

1/r + 2/1-r = 4/r^2

54:02 The graph below shows the exponential function y=2 * and the linear function Y = 2x What is the minimum y-value after which the exponential function will always be greater than the linear function? y=1 Y=2 Y=3 Y=4

What is the range of f (x) = 4^x

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