Question
Question: The equation e<sup>x–1</sup> + x – 2 = 0, has...
The equation ex–1 + x – 2 = 0, has
A
One real root
B
Two real roots
C
Three real roots
D
Infinite real roots
Answer
One real root
Explanation
Solution
ex–1 = 2 – x
The equation ex–1 + x – 2 = 0, has
One real root
Two real roots
Three real roots
Infinite real roots
One real root
ex–1 = 2 – x