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Shrutirupa
please please help me?
if z1, z2 are two complex numbers, then prove that sin z1 + sin z2 = 2 sin (z1+z2)/2 (cos z1-z2)/2
please please telll me.. how to prove this
2 AnswersMathematics9 years agosolve the question with the help of complex no.s?
cospi/11 + cos 3pi/11 + cos5pi/11 + cos7pi/11 + cos9pi/11 = 1/2
1 AnswerMathematics9 years agocan i sit for iit jam for mca?
i m doing bsc in maths.. i just want to know if i would be eligible or not
1 AnswerHigher Education (University +)9 years agois it okay if i do mca after msc?
actually i m doin bsc in maths. and i dont want to b a professor.. i wanna go for some technical line.. so just wanted to know what would be the best for me..
2 AnswersHigher Education (University +)9 years agoplease answer thses questions. have exam tomorrow?
what is the difference between cathe memory and virtual memory??
what is the difference between multitasking and mutiprogramming operating system?
2 AnswersSoftware9 years agoclassical algebra question... plzzz help?
if (cosh)^-1 (x+iy) +(cosh)^-1 (x-iy) =(cosh)^-1 a, where x,y,a are real no.s and a>1, prove thatt the point (x,y) lies on an ellipse.
2 AnswersMathematics9 years agodefine an enumerable set in R. prove that every subset of an enumerable set in enumerable?
please help..
1 AnswerMathematics9 years agoif S={x:x is irrational, 1<x^2+1<3} then find the lub and glb of S?
also find the supremum and infimum of the set S={1/p + 1/q : p,qbelongs to N}
please also explain the way of solving the above questions
2 AnswersMathematics9 years agothis is a question from scalar triple product. please help?
[a+b b+c c+a] = 2[a b c]
1 AnswerMathematics9 years agoguys please please please help... have test tomorrow. unable to solve this quesion?
show that ax(bxc) = (a.c)b-(a.b)c
BQ- by vector method show that in any triangle ABC,
a/sinA = b/sinB =c/sinC
1 AnswerMathematics9 years agotransform the equation x^2-2xy+y^2+x-3y=0 to axes through the point (-1,0) parallel to the lines bisecting the?
angles between the axes.
2 AnswersMathematics9 years agoplease guys answer these questions?
1. show that the area of the triangle formed by three fixed points are unaltered by rotation of axes
2. let f:A-->B and P is a subset of A. then prove that P = f inverse f(P) if P is injective
1 AnswerMathematics9 years agohey guys please help me?
actually i m doin maths honors first year, nd m finding it too difficult to undrstand complex no.s specially topics related to logarithms nd hyperbolic functions. please suggest me some sites or an easy way to deal with it. i hv my exam. please help me. thnkeew in advance
1 AnswerMathematics9 years agolet S be a universal set and A be a fixed subset of S?
if AUB =B holds for all subsets B,prove that A = phi. U-> union. please show me the way of proving this.
3 AnswersMathematics9 years agohow do you find the password while trying for an wifi connection in your laptop or mobile?
whwever i go for wireless connection, it asks some password.. how will i know the password? any suggestions
3 AnswersLaptops & Notebooks9 years agoprove that the linear part of the equation cant be made to disappear by only change of parallel axes?
the equation is 4x^2-12xy+9y^2+4x+6y+1=0. please tell me the way of solving this
1 AnswerMathematics9 years agofind the relation among the coefficients of the given equation ax^3+ 3bx^2+3cx+d=0?
if its roots are in arithmetic progession. please show me the way of solving the given question
2 AnswersMathematics9 years agocan you please suggest me some sites from where i can understand the concept of real analysis?
i m a bsc first year student in maths. so i want some of my topics to be cleared
1 AnswerMathematics9 years agoshow that the mapping is f is surjective but not injective?
f:N-->N defined by f(n) = (n+1)/2, n belongs to N. here N is the set of natural no.s
1 AnswerMathematics9 years ago