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Find the 11th term form the beginning an...

Find the 11th term form the beginning and the 11th term form the end I the expansion of `(2x-1/(x^2))^(25)dot`

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`(2 x-frac{1}{x^{2}})^{25}`
Total terms `=26`
`11^{ {th }}` term from last `=16^{ {th }}` term from start. `Rightarrow {n}=15`
`t_{n+1}=\ ^{m} C_{n} cdot a^{m-m} b^{n} { in }(a+b)^{m} `
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