+2 | Ex - 2.7 Sum No. 4 | Complex Numbers | Class 12 | State Board | ram maths

[@harshidgiriver2007]

As Clear as crystal 🔮✨

[@biasbias539]

Cos2A + i sin2A= e^i2A=e^(iA -(- iA))= e^iA/ e^iA= (CosA+ i sinA) / (CosA -isinA) = Dividing both numerator and denominator by cos A [(CosA + isinA)/Cos A]/ [(CosA -isinA)/CosA]= [(1+i tanA)/(1-i tanA)]****(1) [(1+z)/(1-z)] = Cos2A + isin2A****(2) From (1) and (2) Z= i tan A Hence proved

[@rammathstamil]

S Sathish. Not familiar formula for students. So didn't apply. But cent percent correct

[@biasbias539]

@@rammathstamil thank you sir

[@Johann_Leibert]

@@rammathstamil well said

[@ironwoman0708]

Great bro. It's just awesome. Without using trigonometry u solved it.

[@PcmAddictz]

Bangam bro

[@masskumaranchannel9830]

Super ...❤️❤️❤️❤️ Maths king sir neenga

[@masskumaranchannel9830]

Neenga enaku maths sir ah erundha nalla erukum sir ❤️

[@sumathisangeetha7815]

Thanks for your teaching sir. It's very useful.

[@anbu-eu6fs]

Thank you thala

[@elite_warrior_r]

7:52 Ithuthaan sir ellarukkum nadakkum...😂

[@ammurugavel]

Is this method is right ?we should write in public exam ?

[@jhansiranitenthmatriculati834]

Easya iruku sir. Thankyou sir

[@jeevaaptech123]

Super very excellent guruve

[@mariappanmathu7792]

Thanks Thala 🎉

[@fairojabegam2219]

Simpleaah muduchitinga sir you are very great

[@gkking4254]

Sir unga 12th maths mark enna sir?...

[@fairojabegam2219]

Monday maths exam engaluku thankyou

[@allroundermathavan5299]

Engaluku Tuesday 🎉

[@A.pandeeswariA.pandeeswa-qi3bu]

Engaluku Monday...... quarterly

[@jakulinvasu2352]

Monday

[@jhansiranitenthmatriculati834]

Really super

[@Neymarjr-cs8br]

Awesome sir 👍👍

[@pavipavi249]

This is very easy method sir❤

[@pruthupruthu436]

Sir eulers form use pana la ma

[@AbdulShahir-y1m]

2025 batch

[@aathikavin2075]

Maths la 97 in class 11 because of u thank u sir

[@ironwoman0708]

Me only 83 😢

[@ironwoman0708]

Onga total mark evlo bro?

[@aathikavin2075]

576

[@ironwoman0708]

@@aathikavin2075 epdi bro ivlo mark eduthinga?

[@ironwoman0708]

@@aathikavin2075 12th la yum naraya score panna en valthukal bro.

[@mekalam4976]

Superb sir thank u so much

[@rupeshrocky4674]

😇😇🤯🤯🤯🤯🤯

[@demonlordkishor]

sin@cos@i la eruky but cos square @ real number , common ha cosine ha edukurathu possible ?, please answer .

[@nishasideek7736]

Sir thank u sir

[@user-ve5ug1fs6k]

Thanks sir

[@-Icandoit650]

Thank you sir

[@akilanakil8187]

Super sir

[@heythereiamusingyoutube713]

Sir can we apply eulers form instead ?

[@rammathstamil]

Sure

[@ironwoman0708]

How 2 use eulers method here akka?

[@heythereiamusingyoutube713]

@@ironwoman0708 😅Enku maranthruche

[@heythereiamusingyoutube713]

@@ironwoman0708 😂ada nee vera bro na exam ezhuthamothe maranta😂