Question

Facts about Mathematics
1. Have you ever noticed that the opposite sides a die always add up to seven (7)
2. Trigonometry is the study of the relationship between the angles of triangles and their sides
3. Abacus is considered the origin of the calculator
4. Here is an interesting trick to check divisibility of any number by number 3.A number is divisible by three if the sum of its digits is divisible by three (3)
5. Do you know the magic of no. nine (9)? Multiply any number with nine (9 ) and then sum all individual digits of the result (product) to make it single digit, the sum of all these individual digits would always be nine .
Thanks
Follow me guys​

Answer 1

nice facts..liked it...