Sir in the attached image... It is given to find out cosz while z=ilog(2-root3) is given.. Sir my doubt is if e iz = 2 +root3 Then how is it possible that e -iz = 2-root3 Sir please clear my doubt.

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Aditya Gupta · Answer

e iz = 2 +root3 so now e -iz = 1/ e iz = 1/(2 +root3) now rationalise so e -iz = (2 – root3)/(4 – 3)= 2 – root3

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Sir in the attached image... It is given to find out cosz while z=ilog(2-root3) is given.. Sir my doubt is if e iz = 2 +root3 Then how is it possible that e -iz = 2-root3 Sir please clear my doubt.

Sir in the attached image...
It is given to find out cosz while z=ilog(2-root3) is given..
Sir my doubt is if e^iz = 2 +root3
Then how is it possible that e^-iz = 2-root3
Sir please clear my doubt.

1 Answers

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Sir in the attached image... It is given to find out cosz while z=ilog(2-root3) is given.. Sir my doubt is if e iz = 2 +root3 Then how is it possible that e -iz = 2-root3 Sir please clear my doubt.

Sir in the attached image...It is given to find out cosz while z=ilog(2-root3) is given..Sir my doubt is if eiz = 2 +root3 Then how is it possible that e-iz = 2-root3Sir please clear my doubt.

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Sir in the attached image...
It is given to find out cosz while z=ilog(2-root3) is given..
Sir my doubt is if e^iz = 2 +root3
Then how is it possible that e^-iz = 2-root3
Sir please clear my doubt.