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tanu
Questions (14)
The nth term of the series
5/2,20/13,10/9,20/23.....
2 answers
597 views
Thewhat is the difference between the mean and median of the first four prime numbers that are more than 4?
The mean=9 and the
1 answer
502 views
What is the difference between the mean and median of the first four prime numbers that are more than 4?
3 answers
555 views
If a,b,c are integers and b²=4(ac+5d²), d €N then roots of the eqn ax²+bx+c=0 are
2 answers
599 views
Let a,b and c be real numbers such that 4a+2b+c =0 and ab>0. Then the eqn ax²+bx²+cx²=0 has-
0 answers
447 views
Consider the eqn x²+2x-n =0 where n€N and n€[5,100]. Total no. Of different values of 'n' so that the given eqn has
2 answers
554 views
If the roots of the eqn x²-2cx+ab=0 are real and unequal, then prove that the roots of x²-2(a+b)x+a²+b²+2c²=0 will be
1 answer
935 views
For what values of k the expression kx²+(k+1)x+2 will be a perfect square of a linear polynomial.
0 answers
703 views
Show that if roots of eqn (a²-bc) x²+2(b²-ac)x +c²-ab=0 are equal then either b=0 or a³+b³+c³=3abc.
1 answer
750 views
If a,b and c € R, then prove that the roots of the eqn 1/(x-a) + 1/(x-b) + 1/(x-c) =0 are always real and cannot have roots if
0 answers
489 views
If the roots of the eqn 1/(x+p) + 1/(x+p) = 1/r are equal in magnitude but opposite in sign, show that p+r=2r and that the
1 answer
607 views
If 2+i√3 is a root of the eqn x²+px+q=0, where p,q belongs to R, then find the ordered pair (p,q)
1 answer
433 views
can you tell me how can i make a chemistry working model for class 9
1 answer
420 views
article on "role of media to check corruption"
1 answer
435 views
Answers (3)
Mean=9 Median=11 Is it right? Then the difference between them is -2. But here in the answer sheet the ans is 0!!im really confused
4kqq/r^2
46*3=300
