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Math is very interesting

MATH IS VERY INTERESTING... 1. Zero ( 0 ) is the only number which can not be represented by Roman numerals. 2. What comes after a million, billion and trillion? A quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion and undecillion. 3. Plus (+) and Minus (-) sign symbols were used as early as 1489 A.D. 4. 2 and 5 are the only primes that end in 2 or 5. 5. An icosahedron is a shape with 20 sides. 6. Among all shapes with the same perimeter a circle has the largest area. 7. Among all shapes with the same area circle has the shortest perimeter . 8. 40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order. 9. 'FOUR' is the only number in the English language that is spelt with the same number of letters as the number itself. 10. From 0 to 1,000, the letter "A" only appears in 1,000 ("one thousand"). ...
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Unit digit (इकाई अंक)

इकाई अंक(Unit digit) How we find out to unit digit of a exponent form number . (घातीय रूप मे किसी संख्या का इकाई अंक ज्ञात करना) दोस्तो अब आप ज्ञात करें ईकाई का अंक   बड़ी आसानी से किसी बड़ी से बड़ी संख्या पर अब चाहे जितना घात हो- दोस्तो इस प्रकार के सवाल ज्यादातर  SSC CGL , POLYTECHNIC, BANK CLERK , BANK PO  और    OTHER ONE DAY EXAM  में पूछे जाते है    यदि आप इस नियम को जानते रहेगें तो आप बड़ी आसानी से इस प्रकार के सवाल हल कर सकते हैं। Rule 1 .  यदि दिए गये घातांक (वह संख्या जिस पर घात होता है) उसका ईकाई का अंक 0, 1, 5, 6 हो और उस संख्या पर चाहे जितना घात हो लेकिन प्राप्त हल में जो संख्या आयेगी उसका ईकाई का अंक क्रमशः 0, 1, 5, 6 होगा। कारण :-क्यूंकि 0,1,5,6 की घात हम कितनी भी चढाये ये हमेशा same  मान ही देते हैं । उदाहरण-1. (1240) 459   के हल में ईकाई का अंक ज्ञात किजिए चूकि घातांक की संख्या 1240 है और इसमें इकाई का अंक 0 है अतः इस संख्या का ईकाई का अंक 0 होगा। उदाहरण- 2. (531) 459...
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What is the polar coordinate (ध्रुर्वीय निर्देशांक)?

The  Polar Coordinate System In our blog for the students of 9th,10th,11th, 12th ,  NEET  and  IIT  , this is a post dealing with one of the most complicated and a deemed-to-be very tough topic. We have made it very simple and can be useful for both  RBSE  and CBSE students. Introduction to the Polar Coordinate System When we think about plotting points in the plane, we usually think of rectangular coordinates (x,y) in the Cartesian coordinate plane. However, there are other ways of writing a coordinate pair and other types of grid systems known as  Polar coordinate . The polar coordinate system is an alternate coordinate system where the two variables are r and θ, instead of x and y.               In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle fro...
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What is cartesian coordinate (निर्देशांक ज्यामिति)?

Cartesian coordinates   (rectangular coordinates) In our blog for the students of 9th,10th,11th, 12th ,  NEET  and  IIT  , this is a post dealing with one of the most complicated and a deemed-to-be very tough topic. We have made it very simple and can be useful for both  RBSE  and CBSE students. Cartesian coordinates , also called rectangular coordinates, provide a method of expressing graphs and indicating the positions of points on a two-dimensional (2D) surface or in three-dimensional (3D)  space. The Cartesian plane consists of two  perpendicular   axes that cross at a central point called the origin .  The origin is usually, but not always, assigned the value (0,0).  Positions or coordinates are determined according to the  east/west  and  north/south  displacements from the origin. The east/west axis is often called the  x  axis , and the north/south axis is called the...
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किस दिन को क्या वार था, जानिये मेरे साथ।

Friends ,किस दिन को क्या वार था या क्या होगा,ये बताना अब बहुत ही आसान है,बस जरूरत है आपको कुछ कोड याद रखने के। दोस्तो सबसे पहले मे आपको " वार(Day) कोड" के बारे मे बताना चाहूँगा ।   Day:   Sun   Mon   Tue   Wed   Thu   Fri    Sat Code:    0         1       2         3        4       5       6 Friends, अब मे आपको बताना चाहता हूँ "महिना(Month) कोड" के बारे मे-( friends  ये आप ट्रिक मे याद रखे तो अच्छा है) Months:  J F M   A M J    J A S    O N D                  |  |   |    |   |   |     |  |   |     |   |   |   Code:     0 3 3    6 1 4  ...
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