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6. Write the polar form of the vector 3+j4 A. 6< 53.1° C. 5 < 53.1° D. 8 < 53.1° B. 10 < 53.1°

6. Write the polar form of the vector 3+j4 A. 6< 53.1° C. 5 < 53.1° D. 8 < 53.1° B. 10 < 53.1°

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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6. Write the polar form of the vector 3+j4 C. 5< 53.1° D. 8 < 53.1° A. 6< 53.1° В. 10 <53.1° 7. Simplify (3 – j)² – 7(3 – j) + 10 А. — (3 + j) В. З +j С. 3 —ј D. -(3 – j) 8. If A = 40ej120°, B = 20 < -40°, C = 26.46+ j0, solve for A + B + C. A. 27.7 < 45° B. 35.1 < 45° C. 30.8 < 45° D. 33.4 < 45° 9. Evaluate cosh(j-) A. 0.707 B. 1.14 + j0.866 C. 0.5 + j0.707 D. j0.707 (2+j3)(5-j) 10. Simplify (3-j2)2 221-j91 А. -7+j1 С. 169 13 21+j52 В. -90+j220 D. 13 169
Transcribed Image Text:6. Write the polar form of the vector 3+j4 C. 5< 53.1° D. 8 < 53.1° A. 6< 53.1° В. 10 <53.1° 7. Simplify (3 – j)² – 7(3 – j) + 10 А. — (3 + j) В. З +j С. 3 —ј D. -(3 – j) 8. If A = 40ej120°, B = 20 < -40°, C = 26.46+ j0, solve for A + B + C. A. 27.7 < 45° B. 35.1 < 45° C. 30.8 < 45° D. 33.4 < 45° 9. Evaluate cosh(j-) A. 0.707 B. 1.14 + j0.866 C. 0.5 + j0.707 D. j0.707 (2+j3)(5-j) 10. Simplify (3-j2)2 221-j91 А. -7+j1 С. 169 13 21+j52 В. -90+j220 D. 13 169
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