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7.Binomial Theorem
normal
$(x - 1)$$\left( {x\, - \,\frac{1}{2}\,} \right)$$\left( {x\, - \,\frac{1}{{{2^2}}}\,} \right)$ .....$\left( {x\, - \,\frac{1}{{{2^{49}}}}\,} \right)$ ના વિસ્તરણમાં $x^{49}$ નો સહગુણક મેળવો
A
$-2 \left( {1\, - \,\frac{1}{{{2^{50}}}}\,} \right)$
B
$x$ નો ધન સહગુણક
C
$x$ નો ઋણ સહગુણક
D
$-2 \left( {1\, - \,\frac{1}{{{2^{49}}}}\,} \right)$
Solution
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Standard 11
Mathematics