Find A =2i^+2j^-8k^ B =3i^-6j^+2j^ Find the the |A+B|
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Answer:
15 I think and another question is there double j^ in B
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Explanation:
A + B = (2+3)i + (2-6)j +(-8+2)k
A + B = 5i - 4j - 6k
|A +B| = √(5*5 + 4*4 + 6*6)
= √(25+16+36)
= √(77)
or 8.774
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