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suppose a,b,n are positive integers , all greater than 1. if an+bn is Prime then what can be said about n ? A) n must be 2 B) n need not be 2 but must be a power of 2 C) n need not be a power of 2 but must be even D) none of ...
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consider a function f on non-negative integers such that f(0)=1 , f(1)=0 and f(n) + f(n-1) = nf(n-1) + (n-1)f(n-2) for n≥2 . Show that , \frac{f(n)}{n!} = \sum_{k=0}^{n}{\frac{(-1)^{k}}{k!}} ...
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\int_{\pi /2}^{5\pi /2}{ \frac{e^{tan^{-1}(sinx)}}{e^{tan^{-1}(sinx) }+ e^{tan^{-1}(cosx)}}} dx A)1 B)Ï€ C)e D)none of these ...
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Q) let a,b,c be distinct complex nos. such that |a|=|b|=|c|>0 . if a+bc , b+ac , c+ab are real numbers then abc = __ Ans. 1 a method or a solution would be appreciated. ...
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*Image* i am getting 6 answer given is 2 ...
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*Image* getting totally confused ! plz help. ...
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Q) A neutron moving with speed v strikes a hydrogen atom in ground state moving towards it with same speed. Find the minimum kinetic energy of the neutron for which inelastic(complete or partial) collision may occur . (Take m ...
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why is the site under maintenance for so long. i think its about 5 days. only today did i find out another way of getting into tiit forum. Is everyone else too facing the same problem ? ...
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Sn = x + x2 +x4 + ..... +x2n i remeber man111 posting a question some time ago related to this i think when |x|<1 and n→∞ , this sum should be converging which is why i am interested to find the result. plz try this pr ...
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*Image* Ans : A,C plz help me out with this problem. ...
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*Image* Ans. 1 i seem to have completely forgotten this . some help plz. ...
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*Image* i am getting c) but ans. given is d) ...
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Q) In how many ways can you colour the faces of a cube with six di erent colours, if all the faces are to have a di erent colour ? i am getting 30 . guys, plz try and tell me your answers. ...
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1) no. of isomeric ethers with chiral carbon in molecular formula C5H12O4 2) *Image* which nitogen in thymine is more acidic . (with explanation) 3) Number of isomers of the formula C4H8O4 ...
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Find the points where f(x) is not differentiable. f(x)=|x-1|3 +|x-2|5+|x-3| ...
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Which of the following are non-polar species ? a)AsO3- b) SO32- c)ClO3- d) NO3- Ans: A,B,C plz explain. ...
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*Image* *Image* *Image* *Image* *Image* *Image* *Image* need solutions with proper reasoning. ...
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Find the remainder when 2202 is divided by 101 . ...
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\int_{0}^{\propto }{\frac{sinx}{x}} ...
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Q) Find the maximum radius of a semi-circle that can be placed inside a square of side 'a' ...
