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An object is observed from three points `A, B` and `C` in the same horizontal line passing through
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If in a `DeltaABC quad B = 2pi/3` then the ` cos A + cos C` lies in
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A machine which is `75 per` cent efficient uses `12 J` of energy is lifting up a `1 kg` mass throu
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Ethanol is `CH_(3)CH_(2)OH`. Which species is formed when ethanol acts as a Bronsted base?
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Assume velocity of sound in air as `333.68 ms^(-1)` A hollow tube is placed vertically in a jar co
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` int a ^(x) dx` is equal to
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