What is the value of R2 in meters, given the following equation? R2 = d(1 + α1∆T)/(1 + α2∆T) * (1 + α1∆T)/(∆T * (α2 − α1)) The equation relates the...

What is the value of R2 in meters, given the following equation?
R2 = d(1 + α1∆T)/(1 + α2∆T) * (1 + α1∆T)/(∆T * (α2 − α1))
The equation relates the value of R2 to the length of the bars and the temperature difference.
The values of l1 and l2 are equal.
The value of R2 is approximately 10 meters.
a) Only statement I is true.
b) Statements I and II are true.
c) Statements II and III are true.
d) All statements are true.