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If a charge q is placed at the centre of line joining two equal like charges Q,the system will be in equilibrium if q is a) -Q/2 b) -Q/4 c) +Q/2 d) +4Q Plz explain yur ans ...... ...
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1)prove that (2+√5)1/3 + (2-√5)1/3 is rational. 2)Let a,b,c be distinct real numbers.prove that (a-b)1/3+ (b-c)1/3+ (c-a)1/3≠0 ...
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1)prove that (2+√5)1/3 + (2-√5)1/3 is rational. 2)Let a,b,c be distinct real numbers.prove that (a-b)1/3+ (b-c)1/3+ (c-a)1/3≠0 ...
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I have got 12k rank in AIEEE,280 marks in BITSAT q1 Which option should I choose ? q2 Will AIEEE and BITS cutoffs fall ? q3 Is MSc from BITS good ? ...
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Q18 The final product B in the following reaction CH3CH2CH = CH2 + NBS,hν + (C6H5CO2)2 → A + CH3SNa + CH3OH → B is a) Methyl 1-methylallyl sulphide b) Allyl methyl sulphide c) n-Butyl methyl sulphide d) Diallyl sulphide ...
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Just random thoughts coming to my mind... 1) We know tht in CuSO4.5H2O 4water moecules are coordinated n 1 is H-bonded. So when the hydrated salt is heated, initially, one water molecule remains. Is this the H-bonded one ? 2) ...
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Q1 If tan-14=4tan-1x then x5-7x3+5x2+2x+9870 is equal to ? ...
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If sinx=cosy, 6 siny=tanz,2sinz= 3 cosx ; u,v,w denote respectively sin2x,sin2y,sin2z,then value of triplet (u,v,w) is ? ...
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Find range of y given that y=2tan-1x+sin-1 2x/1+x2 ...
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Q1 If tan-14=4tan-1x then x5-7x3+5x2+2x+9870 is equal to ? ...
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If sinx=cosy, 6 siny=tanz,2sinz= 3 cosx ; u,v,w denote respectively sin2x,sin2y,sin2z,then value of triplet (u,v,w) is ? ...
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Find range of y given that y=2tan-1x+sin-1 2x/1+x2 ...
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Q1 If tan-14=4tan-1x then x5-7x3+5x2+2x+9870 is equal to ? ...
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If sinx=cosy, 6 siny=tanz,2sinz= 3 cosx ; u,v,w denote respectively sin2x,sin2y,sin2z,then value of triplet (u,v,w) is ? ...
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The number of pairs of (x,y) satisfying the equation sinx+siny=sin(x+y) and lxl+lyl=1 is ? ...
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Find the number of divisors of N=22335375 of the form 4n+2 Ans=95 ...
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Find the largest two digit prime factor of 200C100 ...
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Find the number of ordered pairs of positive integers (m,n) satisfying m≤ 2n ≤60 ,n ≤2m≤ 60 ...
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An infinite thread of charge density λ lies along Z axis.Find the potential difference between the points (4,3,4) and (3,4,0) ...
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The equation of ellipse is (x-1)^2+(y-2)^2=\frac{1}{9}(\frac{3x+4y-5}{5})^2 Then find the length of minor axis of ellipse . ...
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Number of Proper factors of 75600 are ? ...
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Nine hundred distinct N digit natural numbers are to be formed using digits 6,8,9 only.Find smallest value of N possible. ...
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Find the number of integers between 1 and 1000 having their sum of digits equal to 12 ? ...
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If x,y,z R such that x2+y2+z2=1 and α=x2+2y2+3z2,then find minimum and maximum value of α ...
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There are k different books and l copies of each in a college library.The number of ways in which a student can make selection of one or more books is ? ...
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Find the number of n digit numbers ,which have no two consecutive digits being same ans=9n ...
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Find the number of divisors of 3630 which leave remainder 1 when divided by 4 ? ans=6 ...
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Find the number of permutations of letters a,b,c,d,e,f,g such that neither the pattern 'beg' nor 'cad' appears Ans:4806 ...
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Find number of ordered triplets of positive integers which are solutions to the equation x+y+z=100 ans:4851 ...
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The metals soluble in aqua regia is/are a)Pt b)Au c)Ag d)Cu ...
