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Today at 11:10 AM
Mathematics

Answered

u = 9i – 6j
v = 7i + 4j
A) 63.43°
C) 173.66°
B) 109.48°
D) 101.31°

Answer :

sqdancefan sqdancefan

Today at 11:15 AM

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Answer:

A) 63.43°

Step-by-step explanation:

The two vectors in polar form are ...

u = (√(9²+6²))∠arctan(-6/9) = √117∠-33.69°

v = (√(7²+4²))∠arctan(4/7) = √65∠29.74°

The angle between the two vectors is ...

29.74° -(-33.69°) = 63.49°

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