Search found 125 matches
- Thu Dec 30, 2010 2:55 pm
- Forum: Physics
- Topic: Suggest some Books!!
- Replies: 19
- Views: 10941
Re: Suggest some Books!!
non-euclidean geometry শেখার জন্য কোন বই গুলো দরকার??? কই পাওয়া যাবে বই গুলো???
- Thu Dec 30, 2010 2:38 pm
- Forum: Divisional Math Olympiad
- Topic: digit again
- Replies: 10
- Views: 6757
Re: digit again
rrre ekhon new year er jonno $6^{2011}+7^{2011}$ er last duita onko dao....ans ta khub e mojar....
[new post e dilam na cz 2tai similar onko]
[new post e dilam na cz 2tai similar onko]
- Thu Dec 30, 2010 2:17 pm
- Forum: Divisional Math Olympiad
- Topic: digit again
- Replies: 10
- Views: 6757
Re: digit again
$6^{40} \equiv 1 (mod 100)$ $6^{40 \cdot 50} \equiv 1^{50} (mod 100)$ $6^{2000} \equiv 1 (mod 100)$ $6^{2000} \cdot 6^3 \cdot 6^3 \cdot 6 \equiv 1 \cdot 16 \cdot 16 \cdot 6 (mod 100)$ $6^{2007} \equiv 36 (mod 100)$ and, $7^{40} \equiv 1 (mod 100)$ $7^{40 \cdot 50} \equiv 1^{50} (mod 100)$ $7^{2000}...
- Wed Dec 29, 2010 11:49 am
- Forum: Physics
- Topic: Dependance of "g"
- Replies: 51
- Views: 26285
Re: Dependance of "g"
hey,m change korle F o change hobee...karon $F$=$\frac{G\cdot m_1 \cdot m_2}{d^2}$...... now let M and m be the mass of earth and that object respectively.... so,$\frac{F}{m}$=$\frac{G \cdot m \cdot M}{m \cdot d^2}$.. \Rightarrow $\frac{F}{m}$=$\frac{G \cdot M}{d^2}$=$g$ \Rightarrow $g$=$\frac{G \cd...
- Tue Dec 28, 2010 2:39 pm
- Forum: Divisional Math Olympiad
- Topic: DIGIT
- Replies: 24
- Views: 12761
Re: DIGIT
ঠিক হইয়া গেছে...।:)
- Mon Dec 27, 2010 11:44 am
- Forum: Divisional Math Olympiad
- Topic: DIGIT
- Replies: 24
- Views: 12761
Re: DIGIT
আচ্ছা আমি খালি লাইন দেখি, equation দেখতাসি না...কিন্তু এতদিন তো দেখা যাইতো, হঠাৎ কি হইল?? বুঝতে সমস্যা হচ্ছে তো।
- Mon Dec 27, 2010 11:38 am
- Forum: Divisional Math Olympiad
- Topic: DIGIT
- Replies: 24
- Views: 12761
Re: DIGIT
yup.......HandaramTheGreat wrote:এইভাবে mod সহ ভাগ করা যায়?Labib wrote:$\Rightarrow 2^3\times2^{206} \equiv x( mod 125 \times 2^3)
\Rightarrow 2^{206} \equiv \frac x{8} (mod 125)$
- Mon Dec 27, 2010 11:24 am
- Forum: Divisional Math Olympiad
- Topic: number theory problem
- Replies: 10
- Views: 6654
Re: number theory problem
yup i did'nt think about $5!$......it was my mistake but as $a$ $\equiv$ $a+n$ $(mod n)$, $5!$ can't change the ans.viivviiave wrote:wait
i don't understand. both 5! and 6! are also divisible by 30
- Sun Dec 26, 2010 2:49 pm
- Forum: Divisional Math Olympiad
- Topic: Problems
- Replies: 18
- Views: 11192
Re: Problems
কেন????TOWFIQUL wrote:Ses prjnto tui boka bone geli..!!! @mosha
- Sun Dec 26, 2010 2:47 pm
- Forum: Divisional Math Olympiad
- Topic: DIGIT
- Replies: 24
- Views: 12761
Re: DIGIT
opppppsssssss kheal korri nai......ai reeeeee ans millo kemne??? okay $2^9$ use kroHandaramTheGreat wrote:@shahriar, you can't divide by 2 in the last line cause it isn't coprime with 1000...