Question

Let * be a binary operation on Real numbers
defined by

a*b=ab/4

Given a*b=9

Find a and b

Answer 1

help ! @TuringTest , @Mani_Jha , @dumbcow ,

Answer 2

ok so we are given with the following information :
a * b = ab/4
a*b = 9
this means \(\large{\frac{ab}{4} = 9}\) , right ?

Answer 3

yes

Answer 4

yes

Answer 5

---> ab =36

Answer 6

Now , can you find what will be the value of "ab" ?

Answer 7

ab=36 ?

Answer 8

100010 =36

Answer 9

but how i find value of a and b ?

Answer 10

Yes right @aman07

Answer 11

OK let me think for what to do after this, wait!

Answer 12

ok

Answer 13

What we have yet as a first way to get rid of this is "hit and trial" but really I don't think that hit and trial will be a satisfactory method ....

Answer 14

well i knw to do that ..but there is some method using identity element and stuff

Answer 15

http://www.math.csusb.edu/notes/binop/node2.html

I saw something here

Answer 16

:( i have that already in text.. i am stuck in this particular qn :(

Answer 17

i got it now. you have ab =36 that means a=3 and b =6. in binary system, 3= 10 (one zero) and 6 = 1001. make multiplication between them , you got exactly 36 in both code (binary and 10 system)

Answer 18

wth ??

Answer 19

ok

Answer 20

I tried to search some relative problems on binary operations on internet and I found this question :
if : \(\large{a\alpha b = |a-b| }\) then what will be \(\large{6\alpha 8 }\) . Of course that will be 2 but the question given is not exactly what we have in m

Answer 21

In my question (contd. from the previous post.)

Ok, I have never learnt it but I thought it is a type of mental ability question... Is it also related to binary numbers ?