গণিতের শর্টকাট ফর্মুলার (ShortCut Math Techniques) এক্সক্লুসিভ বাংলা ই-বুক ।বিসিএস ,ব্যাংকার্স রিক্রুটম্যান্ট, IBA,MBA,GMATও GRE ও যে কোন প্রতিয়োগিতামূলক পরীক্ষার প্রস্ততির জন্য
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Want more Updates http://facebook.com/tanbir.ebooks facebook /gmail/skype: - http://tanbircox.blogspot.com আনায ই−ফু ক ফা pdf রযডারযয Menu Bar এয View অনরি Ʊে রিক করয Auto /Automatically Scroll অনরি ররর কśন (অথফা যারয Ʊমরে Ctrl + Shift + H )। এফায ↑ up Arrow ফা ↓ down Arrow Ʊে রিক করয আনায ড়ায ু রফধা অনুারয Ɔর ƒীড রিক করয রননȚ Straight line যররযখা (রকান ĴারফĢু Ʊনই) Ray যরŲ (একরি ভা ĴারফĢু) Line Segment Ʊযখা (দুরি ĴারফĢু থারক) Similar toদৃ Almost Equal toĴায় ভান Is Equivalent to / Congruent ফƳভ Angle Ʊকান Right Angle ভরকান Measured Angleরযভাকৃ ে Ʊকান Perpendicular To রŔ Is Parallel to ভাযার Therefore / Hence ুেযা Since / Because Ʊমরেু / কাযন Triangle রবু জ Rectangle/Square আয়েরে ফা ফগƳরে Circleফৃ
Transcript
1. Want more Updates http://facebook.com/tanbir.ebooksfacebook
/gmail/skype: - http://tanbircox.blogspot.com pdf Menu Bar View
Auto /Automatically Scroll ( Ctrl + Shift + H ) up Arrow down Arrow
Straight line ( )Ray ( )Line Segment ( )Similar to Almost Equal to
Is Equivalent to / Congruent Angle Right Angle Measured Angle
Perpendicular To Is Parallel to Therefore / Hence Since / Because /
Triangle Rectangle/Square Circle
2. Want more Updates http://facebook.com/tanbir.ebooksfacebook
/gmail/skype: - http://tanbircox.blogspot.com Euclids (): Elements
13 , 300 ,
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/gmail/skype: - http://tanbircox.blogspot.com 90 , 180 , DEF ACBAB
|| CD EF (Transversal) , AGF = DHE DGF = CHE
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/gmail/skype: - http://tanbircox.blogspot.comAB || CD EF
(Transversal) , AGF = CHF DGF = DHF ABC , BAC =B , ABC = B , ACB =
C AB= c , BC = a AC = b
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/gmail/skype: - http://tanbircox.blogspot.comABC A , B c < 90ABC
A C < 90 B = (900< < 1800)
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/gmail/skype: - http://tanbircox.blogspot.comABC B = = 900 A + C =
900 A = C = 900 , 900 = + = + 3:4:5 , 5:12:13 , 8:15:17 , 7:24:25 ,
Multiple [ = + , 5 = 4 + 3 , 25 = 25 , ]
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/gmail/skype: - http://tanbircox.blogspot.comABC AB BC CAABC AB =
AC BC b = c B = C , , ABC AB = BC = AC a= b = c A = B = C =600
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/gmail/skype: - http://tanbircox.blogspot.com , , ( ) 4 3600 A +B
+C + D = 3600
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/gmail/skype: - http://tanbircox.blogspot.com , n (Interior Angles)
n = ( 2n 4) 900 = n 2 1800 = 180 )0 , n = 3600 = ( )0Area of
HexagonA = 2.6 s2[where s is the length of one side]Area of
OctagonA = 4.83s2[where s is the length of one side]
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19. Want more Updates http://facebook.com/tanbir.ebooksfacebook
/gmail/skype: - http://tanbircox.blogspot.com = a = b , A = = a b S
= 2 ( + ) = 2(a + b) d = + = = a A = = a a = A= = [ = 2 = 2 ] S =
2(a + a) = 4 a d = + = 2 a
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/gmail/skype: - http://tanbircox.blogspot.com =a h = = a h a , b =
a b n d X = (AC) (CG) = d X d1 d2 , = a , b d = 2 ( , ) [ , = S = =
] = 2 ( + ) BD = d1 AC(d2) = + = + + [ CF =DE][DE AB DE = ][BF BF =
]
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/gmail/skype: - http://tanbircox.blogspot.com = = a AC= d1 BD= d2 A
= ( ) = S = 4 AB =a DC = b CE = h = = (AB + CD ) CE = (a +b) h
=
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/gmail/skype: - http://tanbircox.blogspot.com BC= a AD = h = (BC)
(AD) = a h , = = (a) (b) = a b n = b c n = c a n ABC BC=a , AB =c
AC=b (2S) = = a+b+c S == = / / = b = a = 4 / ( = 60) / = a = = 3
a
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/gmail/skype: - http://tanbircox.blogspot.com = = [ = ] ABC l , m n
S = = ABC a , b c ; =R A = + + ABC a , b c ; =R A = , = =3.1416() =
1801= (S) (d)
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/gmail/skype: - http://tanbircox.blogspot.com (r) = 2 = 2r = = = 2
r = 2 r r S 360 = 2 r ,, ,, ,, ,, ,, = = S = r S ,S = r [ 1= 180] =
r , = r S , =
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/gmail/skype: - http://tanbircox.blogspot.com OA= r1 OB = r2 , = =
r1 r2 = 2
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/gmail/skype: - http://tanbircox.blogspot.com =a , =b = c =d (Area
of the Whole Surface)= = 2 (ab +bc +ca) (Volume) = = a b c , d = +
+ = = = a =d (Area of the Whole Surface)= = 6 (Volume) = = , d = 3
a
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/gmail/skype: - http://tanbircox.blogspot.com (Right Circular) BC =
r , AB= h AC = l l = + [ = + ] = (2r) (l) = rl = r + (Whole
Surface) = ( l) + ) = r (l +r) (Volume): = ) (h) = h
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/gmail/skype: - http://tanbircox.blogspot.com (Right Circular) OB
=r OC =h = (2r) (h) = 2 h = (2rh) + (2 ) (Whole Surface) = 2r(h+r)
= ( ) (h) = h
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/gmail/skype: - http://tanbircox.blogspot.com n = = = = = = n = = n
n n + = 1 n = 1 = 1 n = 1 = 1 + = 1 = 1 = 1 + = 1
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/gmail/skype: - http://tanbircox.blogspot.com sin 0 1212321cos 1
3212120tan( ) 0 131 3 cot( ) 3 1 130sec( ) 1 232 2 Cosec ( ) 2 2
2310, 1, 2, 3, 4, 4 , , , , n n 0 n 30 n 45 n 60 n 90 0,1 sin cos
sin cos tan 1 n +1 1 +1 1 -1 n
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/gmail/skype: - http://tanbircox.blogspot.com sin / cos / tan {n 90
) } {n 90 } (