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-7. а -(а-Ь) a (а) 21 (b) 27 (е) 17 (d) 9 (е) 33

-7. а -(а-Ь) a (а) 21 (b) 27 (е) 17 (d) 9 (е) 33

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 62E
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# 17

(d) 512 cos +isin- 6. 6. (e) not given 12. Solve the equation +32i= 0. There are five solutions; only one of them is given. 元 (a) 2 cos++ isin 3 +isin 10 (b) 2 сos 6 COs- (c) 2 cos- +isin 10 (d) 2 cos- + isin (e) 2 cos- 9 Co8- +isin 5. In problems #13-18, perform the indicated operations, using the following vectors: a = (-1,5), b= (2,-1) 13. 2a-5b (a) (-3,6) (b) {-12,15) (c) (-11,26) (d) (10,–22) (e) (-5,16) 14. 3b-2a (a) (8,-13) (b) (5,-17) (c) {-2,21) (d) (-3,21)} (e) (14,–13) 15. 2a (a) V97 (b) v101 (c) v104 (d) V113 (e) 77 16. a b (а) —7 (b) 6 (c) -2 (d) 9 (е) -11 17. a (a - b) (a) 21 (b) 27 (c) 17 (d) 9 (e) 33 18. Find the angle between a and b. (a) 49.12° (b) 27.56° (c) 100.11° (d) 127.87° (e) 132.37° 62 F Clear G a P Type here to search DOLL Del Insert PrtScr F12 F11 F10 F9 F8 F7 F6 F4 F5 F2 F3 Esc & A 24 7
Transcribed Image Text:(d) 512 cos +isin- 6. 6. (e) not given 12. Solve the equation +32i= 0. There are five solutions; only one of them is given. 元 (a) 2 cos++ isin 3 +isin 10 (b) 2 сos 6 COs- (c) 2 cos- +isin 10 (d) 2 cos- + isin (e) 2 cos- 9 Co8- +isin 5. In problems #13-18, perform the indicated operations, using the following vectors: a = (-1,5), b= (2,-1) 13. 2a-5b (a) (-3,6) (b) {-12,15) (c) (-11,26) (d) (10,–22) (e) (-5,16) 14. 3b-2a (a) (8,-13) (b) (5,-17) (c) {-2,21) (d) (-3,21)} (e) (14,–13) 15. 2a (a) V97 (b) v101 (c) v104 (d) V113 (e) 77 16. a b (а) —7 (b) 6 (c) -2 (d) 9 (е) -11 17. a (a - b) (a) 21 (b) 27 (c) 17 (d) 9 (e) 33 18. Find the angle between a and b. (a) 49.12° (b) 27.56° (c) 100.11° (d) 127.87° (e) 132.37° 62 F Clear G a P Type here to search DOLL Del Insert PrtScr F12 F11 F10 F9 F8 F7 F6 F4 F5 F2 F3 Esc & A 24 7
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