Search found 13 matches

by Ridwan Abrar
Thu Oct 23, 2014 12:22 pm
Forum: News / Announcements
Topic: Combinatorics Workshop: Day 1 (04.12.13)
Replies: 7
Views: 3013

Re: Combinatorics Workshop: Day 1 (04.12.13)

:?: I couldn't understand the example of product rule. Can anyone explain me in detail?
by Ridwan Abrar
Sat Feb 01, 2014 12:48 am
Forum: Secondary: Solved
Topic: Rangpur Secondary 2011/2
Replies: 5
Views: 2100

Re: Rangpur Secondary 2011/2

Can anyone confirm which one is the correct answer?
by Ridwan Abrar
Sat Feb 01, 2014 12:43 am
Forum: Secondary: Solved
Topic: Dhaka Secondary 2009/4
Replies: 3
Views: 1553

Re: Dhaka Secondary 2009/4

What sequence did you find?
by Ridwan Abrar
Sat Feb 01, 2014 12:10 am
Forum: Secondary: Solved
Topic: Dhaka Secondary 2009/12
Replies: 3
Views: 1559

Re: Dhaka Secondary 2009/12

How did you find out that DG=3?
by Ridwan Abrar
Fri Jan 31, 2014 9:11 pm
Forum: Secondary: Solved
Topic: Dhaka Secondary 2009/8
Replies: 8
Views: 2568

Re: Dhaka Secondary 2009/8

in triangle ABC, cos 30=AC/1
ANGLE DCB+ ANGLE DBC=90
ANGLE ACD+ANGLE DCB=90
GIVEN, ANGLE ACD=ANGLE DBA
SO, ANGLE ACD=ANGLE DBA
ANGLE DBC=ANGLE DBA=60/2=30
sin(120)/AC=sin(30)/AE
AE=0.5
by Ridwan Abrar
Sun Jan 26, 2014 10:53 pm
Forum: Secondary Level
Topic: Sets
Replies: 2
Views: 667

Re: Sets

thanks a lot
by Ridwan Abrar
Fri Jan 24, 2014 8:18 pm
Forum: Algebra
Topic: algebra
Replies: 1
Views: 512

algebra

For what value of $m$ , $x^4+xy+mx+5$ can be resolved into linear factors?
by Ridwan Abrar
Fri Jan 24, 2014 8:15 pm
Forum: Secondary Level
Topic: Sets
Replies: 2
Views: 667

Sets

If $A=\{a,b,c\}$ and $B=\{1,2,3,4\}$ then from set $A$ to set $B$ , how many different functions can be formed?
by Ridwan Abrar
Fri Jan 24, 2014 7:53 pm
Forum: Site Support
Topic: Font problem
Replies: 1
Views: 984

Font problem

some thing like this appears: এখন ফোরামের নির্দেশিকা বাংলায়ও পড়া যাবে; Forum Guide & Rules এই টপিকে ইংরেজী নির্দেশিকার পরেই বাংলায় নির্দেশি...
by Ridwan Abrar
Fri Jan 24, 2014 12:01 am
Forum: Primary Level
Topic: number theory
Replies: 3
Views: 1238

number theory

If 3=5 then 4=?