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Precalculus
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OpenStudy (anonymous):
Find a ⋅ b. a = <7, 4>, b = <3, 5>
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Parth (parthkohli):
Dot product?
OpenStudy (anonymous):
@ParthKohli yes
Parth (parthkohli):
\[a \cdot b\]\[= \langle 7,4\rangle \cdot \langle 3,5\rangle \]\[= 7\times 3 + 4\times 5\]\[= 21 + 20\]\[= 41\]
OpenStudy (anonymous):
@ParthKohli that's all I do?
Parth (parthkohli):
Yes, that's all.
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OpenStudy (anonymous):
@ParthKohli thanks!
Parth (parthkohli):
No problem!
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