=3. Let a = [2₁1,-1], 5o = [4₁-5, 3] and C-[-1,-2,5]. compute ax (b + c). Show full steps.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 6E
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Please answer both and show full steps.
18. Let a = (2,1,-1], T = [4₁-5, 3] and C = [-1₁-2,5].
compute ax (b + c). Show full steps.
19. Find the value of m where the vectors a = (-3,2,-5) and
b = (3m, -2m) and have an angle of 120°. Show full steps,
Transcribed Image Text:18. Let a = (2,1,-1], T = [4₁-5, 3] and C = [-1₁-2,5]. compute ax (b + c). Show full steps. 19. Find the value of m where the vectors a = (-3,2,-5) and b = (3m, -2m) and have an angle of 120°. Show full steps,
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