Integration Trigno and Complex no mixed proof doubt

can't understand How (cosbx+isinbx) changed to e^ibx

iTeachChem Helper•6/17/25, 8:09 AM

@Apu

iTeachChem Helper•6/17/25, 8:09 AM

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SirLancelotDuLac•6/17/25, 8:30 AM

e^(I.theta)=cos(theta)+isin(theta)

SchrodingerBilla•6/17/25, 9:04 AM

Yeah Euler theorem

AbhiOP•6/17/25, 9:20 AM

Never heard it weird which chapter it comes in ?

SirLancelotDuLac•6/17/25, 9:24 AM

Complex numbers

AbhiOP•6/17/25, 9:31 AM

Allen didn't teach it in class 11 duh

SirLancelotDuLac•6/17/25, 9:51 AM

Oh. Welp there were some things that could help in simplification and stuff for integration:/

SirLancelotDuLac•6/17/25, 9:52 AM

Like that e^(ax)sin(bx) thing.

SirLancelotDuLac•6/17/25, 9:53 AM

Or sinⁿx

Real potato•6/18/25, 2:01 PM

Yeah allen does this they teach complex and even pnc in 12th only

AbhiOP•6/21/25, 7:46 AM

+solved @SirLancelotDuLac

iTeachChem Helper•6/21/25, 7:46 AM

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