Question

if the equation (1/4)^x + (1/2)^(x-1)+b=0 has a positive solution, then the real number b lies in the interval

Answer 1

Step-by-step explanation:

If both the roots are positive i.e. they lie in (0, ¥), then the sum of the roots as ... Þa + b = – > 0 and ab = > 0 with b2 – 4ac > 0. ... than 3 and the other root is smaller than 1. Solution: Let f(x) = x2 + 2(a – 1 ...