Nice Radical Math problem || Find value of a=??✍️🖋️

[@harikishan1900]

Lovely solution

[@harshpathak2359]

Nice solution

[@KhushiTtripathi]

Good theorem presented , Thanks

[@KeshavKulkarni-x1w]

Too good 🎉

[@aruntiwari5714]

Very good maam

[@satyadev3848]

Perfect solution

[@arvindkulkarni6580]

Solution is very perfect. Liked it

[@LaxmanKumar-yi4cv]

Great learning

[@BrijLalSahu-bb1lu]

🎉🎉 very nice solution @MATHS TUTORIAL ( BL SAHU)

[@manojchaugule794]

🎉🎉🎉🎉🎉🎉🎉

[@DarshChouhan-r6g]

Nice teaching method

[@AvikDey-z6y]

√a+i√a=12
Or (√a+i√a) (√a+i√a) =144
Or a+ai+ai-a=144
Or 2ai=144
Or ai=72
Or a=72/i =72/√-1=-72

[@NithyaGhumare]

Great 👌

[@pocopico76]

Plug the results into the initial equation and you see both results are valid!

[@luishavanzi6750]

Wrong solution, I'm affraid

[@逸園-無毒果園]

you must to check it, how to check it ?

[@Sekar-888]

a=72(-i) ,ixi=i^2=-1, i =√-1/.

[@lefaietienne1292]

Can be solved much much faster:
((sqr(a)+sqr(-a))^2=12^2
a+2sqr(a).sqrt(-a)-a=144
a-a+2sqr(-a^2)=144
sqr(ai^2)=72
a=+/-72i

[@AlbertoGrigolini]

Why √(72)² = +/- 72, but we have always learned that √x² = |x|?

[@mmomajd1856]

Complex number C, not R

[@AlbertoGrigolini]

@mmomajd1856
Then it should be developed in a different way
(72)² doesn't have any imaginary part