If \(m*n = (\frac{m}{n} - \frac{n}{m}\)) for m, n belong to R, evaluate -3*4
\(\frac{-25}{12}\)
\(\frac{-7}{12}\)
\(\frac{7}{12}\)
\(\frac{25}{12}\)
Explanation
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Since m*n=(m/n - n/m)
the same is applicable to -3*4
which will be -3*4=(-3/4 - 4/-3)
therefore;-3/4 - 4/-3=l.c.m=-12
(9-16/-12)=-7/-12
eliminate the subtraction sign and d answer is 7/12
since m*n ={m/n -n/m}
-3*4= (-3/4 - 4/-3)
the l.c.m of the denominators is -12, therefore
9-16/-12
= -7/-12
the minus signs will cancel out each other so the answer z 7/12
correct
Since m*n = (m/n - n/m) equals to -3*4
i.e m=-3 and n=4
sub.m=-3 and n=4 into (m/n - n/m).....
(-3/4 - 4/-3) the LCM is -12 it gives -3(-3) - 4(4) all divided by the LCM -12 and equals
9-16 divided by -12
-7/-12 divide both sides by - =7/12
m*n=(m/n-n/m)
m=-3/4 and n=4/-3
=(-3/4)-(4/-3)
Take L.C.M of 4and-3=12
(-3/4)-(4/-3)
4 go in 12=3*-3=-9, -3 go in 12=-4*4=-16 now we have
=-9-(-16)/12 ,(-*-16 = +16)
=-9+16/12
=7/12
Since m*n=(m/n - n/m)
the same is applicable to -3*4
which will be -3*4=(-3/4 - 4/-3)
therefore;-3/4 - 4/-3=l.c.m=-12
(9-16/-12)=-7/-12
eliminate the subtraction sign and d answer is 7/12
I did mine like this:
-3*4=3/4 + 4/3
then
3+4=7
4*3=12
which is=
7/12
