Sudarshan Asked a Question
April 6, 2020 12:32 pmpts 30 pts
complex function, shortcut method to solve quickly thank you
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  • Abhishek singh thankyou
    Option C is correct one. I have attached the easiest proof. Thank you.
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  • Ruby negi Best Answer
    use the formula sin(A+B)=SinAcosB+ sinBcosA and use properties of hyperbolic trigonometric functions i.e sin(iA)=i sinhA and cos(iA)=coshA
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