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value of a for which the equation 4cosec2[pi(a+x)]+a2-4a=0 has real roots..... ...
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what volume of .1 M H2SO4 must be added to 50mL of a .1M NaOH solution to make a solution in which molarity of H2SO4 is .05M (a)400ml (b)50ml (C)100ml (d)150ml answer given is (C) whereas i am getting (b) ...
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1> if y represents mass and x represents velocity then dimensional formula for d3y/dx3 will be? 2> in the eqn y=Asin(ax+bt),if x and y are in meter,t is in second,hen unit of 'a' is 1 /meter true or false? ...
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if 1/6,instead of1/12,mass of carbon atom is taken as relative atomic mass unit then the mass of 1 mole of an atom will:......REMAIN UNCHANGED could someone prove it? ...
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calculate the final molarity of : 200 ml 1 M HCl +100ml .5M H2SO4 ...
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the 'set of all squares in a plane' is the subset of 'all rectangles in the same plane'...T/F? ...
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if one root of (l-m)x2+lx+1=0 be double of the other and if l be real, show that m≤9/8 ...
