By splitting \(1.1\) and then applying Binomial Theorem, the first few terms of \((1.1)^{10000}\) can be obtained as
\((1.1) ^{10000} = (1+0.1)^{ 10000}\)
=\(^{10000}C_0 + ^{10000}C_1(1.1)\,+\,\text{Other positive terms}\)
=\(1+10000×1.1+ \text{Other positive terms }\)
=\(1+11000+\text{Other positive terms}\)
\(> 1000\)
\(\text{Hence,}\, (1.1)^{10000} >1000\).
If a and b are distinct integers, prove that a - b is a factor of \(a^n - b^n\) , whenever n is a positive integer.
[Hint: write\( a ^n = (a - b + b)^n\) and expand]
Figures 9.20(a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ?