Question

if a = 3i + 4j and b = 6i + pj and magnitude of a by b = 1/2 , find the value of p
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Answer 1

Explanation:

a = 3i+4j

b = 6i+pj

so, b = 1/2

6i+pj = 1/2

pj = 1/2-6i

p = (1/2-6i)/j.