Note: Answers must be in 4 decimal places. 1.Use De Moivre's Theorem to solve the following. I. Find [2(cos120° + jsin120°)]5 i. ii. Find (-+j 10 부 III.Find the roots of (1 + j)*/5 t5-10t3+5t iV. Prove that tan50 where t = tan0. Deduce the values of 5t4-10t2+1 nn tan for n = 1,2,3,4. 10

Note: Answers must be in 4 decimal places. 1.Use De Moivre's Theorem to solve the following. I. Find [2(cos120° + jsin120°)]5 i. ii. Find (-+j 10 부 III.Find the roots of (1 + j)*/5 t5-10t3+5t iV. Prove that tan50 where t = tan0. Deduce the values of 5t4-10t2+1 nn tan for n = 1,2,3,4. 10

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

Question

Note: Answers must be in 4 decimal places.
1.Use De Moivre's Theorem to solve the following.
I. Find [2(cos120° + jsin120°)]5
i.
ii. Find (-+j
10
부
III.Find the roots of (1 + j)*/5
t5-10t3+5t
iV. Prove that tan50
where t = tan0. Deduce the values of
5t4-10t2+1
nn
tan
for n = 1,2,3,4.
10

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