Question

Prove that yong's modules of a wire is equal to the stresd necessary to double it's length

Answer 1

Answer:

. If

\begin{gathered} \frac{ \sqrt{7 + \sqrt{6} } }{ \sqrt{7 - 6} } = a + b \sqrt{42} \\ \end{gathered}7−67+6=a+b42



thenthen

, then a/b =

(a) 2/11 (b) 13/2 (c) 9/2 (d) 6/7