Others
Maths Puzzle
a+1/a=6 then a^4+1/a^4=?
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Others Other Question
. How many words can be formed by using all the letters of the word ‘DAUGHTER’ so that the vowels always come together?
a. 5040
b. 4320
c. 720
d. 423
52*52+52*48+48*48
------------------------------=?
52^3-48^3