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Find A· B
- a=10i6j,b=5i+2j\mathbf { a } = 10 \mathbf { i } - 6 \mathbf { j } , \mathbf { b } = 5 \mathbf { i } + 2 \mathbf { j }

Question 116

Multiple Choice

Find a· b.
- a=10i6j,b=5i+2j\mathbf { a } = 10 \mathbf { i } - 6 \mathbf { j } , \mathbf { b } = 5 \mathbf { i } + 2 \mathbf { j }


A) 38
B) 15,4\langle 15 , - 4 \rangle
C) 62- 62
D) 50,12\langle 50 , - 12 \rangle

Correct Answer:

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