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If $|x| < 1$, then the coefficient of $x^n$ in expansion of $(1 + x + x^2 + x^3 + ...)^2$ is :
jeemain
math
past papers
2002
224
asked
Dec 11, 2018
by
pady_1
0
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Two stones are projected from the top of a cliff $h$ metres high, with the same speed $u$ so as to hit the ground at the same spot. If one of the stones is projected horizontally and the other is projected at an angle $\theta$ to the horizontal, then $\tan \theta$ equals :
jeemain
math
past papers
2003
224
asked
Dec 11, 2018
by
pady_1
0
answers
The manifestation of band structure in solids is due to
jeemain
physics
past papers
2004
224
asked
Nov 5, 2018
by
pady_1
0
answers
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