edited by
465 views

Please log in or register to answer this question.

Related questions

1 votes
1 votes
1 answer
2
Chandanachandu asked Mar 5, 2020
506 views
If the roots of the equation $(a^{2}+b^{2})x^{2}+2(b^{2}+c^{2})x+(b^{2}+c^{2})= 0$ are real, which of the following must hold true?$c^{2}\geq a^{2}$$c^{4}\geq a^{2}(b^{2}...
0 votes
0 votes
0 answers
4
Chandanachandu asked Mar 5, 2020
609 views
A student is asked to form numbers between $3000$ and $9000$ with digits $2,3,5,7$ and $9$. If no digit is to be repeated, in how many ways can the student do so?$24$$12...