- Figure 1
- 1.png (3.96KiB)Viewed 5420 times
in Figure 1, $2\angle BAM=\angle MAC; 2AC=AD.$
$\angle DBA= ?$
Jessore 2007 HS prob 11
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Given that,
in Figure 1, $2\angle BAM=\angle MAC; 2AC=AD.$
$\angle DBA= ?$
in Figure 1, $2\angle BAM=\angle MAC; 2AC=AD.$
$\angle DBA= ?$
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Re: Jessore 2007 HS prob 11
আমার মাথায় একটা সলুশন আসছে। দেখ তো:
Last edited by amlansaha on Tue Dec 06, 2011 9:21 pm, edited 3 times in total.
অম্লান সাহা
Re: Jessore 2007 HS prob 11
অম্লান দা, আপনার লেটেক্স করায় সমস্যা হইসে, দেখা যাচ্ছে না...
তয় আপনের লেখাটা আমি দেখসি...
কথা হইল, সল্যুশন আছে $90^{\circ}$.
বুঝতেসি না, কি সমস্যা!!
তয় আপনের লেখাটা আমি দেখসি...
কথা হইল, সল্যুশন আছে $90^{\circ}$.
বুঝতেসি না, কি সমস্যা!!
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
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nafistiham
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Re: Jessore 2007 HS prob 11
এখানে তো \angle DBA এর মানটা ধ্রুব থাকছে না । তাই না?
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Re: Jessore 2007 HS prob 11
আমিও সেটাই বলছি :Snafistiham wrote:এখানে তো $\angle DBA$ এর মানটা ধ্রুব থাকছে না । তাই না?
অম্লান সাহা
Re: Jessore 2007 HS prob 11
আমিও তো এই সমস্যার আগা-মাথা বুঝি নাই...
এত দিন জ্যামিতি করার পর এই বিভাগীয় এর দুইটা জ্যামিতির একটাও করতে না পারলে মেজাজ খারাপ হয় না!!!
ওদিকে আরেকটা সমস্যা দিসিলাম না, Max value of $\angle APB$. ওটারও কেউ সমাধান দিচ্ছে না!!
এত দিন জ্যামিতি করার পর এই বিভাগীয় এর দুইটা জ্যামিতির একটাও করতে না পারলে মেজাজ খারাপ হয় না!!!
ওদিকে আরেকটা সমস্যা দিসিলাম না, Max value of $\angle APB$. ওটারও কেউ সমাধান দিচ্ছে না!!
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
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bristy1588
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nafistiham
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Re: Jessore 2007 HS prob 11
আমার যতদূর মনে পড়ে একটা টপিক দেখছিলাম এই সমস্যার উপর । মুন ভাইয়া বলছে যে এটাতে প্রয়োজনীয় তথ্য নাই ।
খুঁজে পাইলে লিঙ্কটা দিতাম
খুঁজে পাইলে লিঙ্কটা দিতাম
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
Re: Jessore 2007 HS prob 11
থ্যাংকস... আমার ইজ্জত বাচাইলি, দোস্ত...
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes