Physics, asked by pratapkarunesh007, 1 year ago

A=3i-j+7k and B=5i-j+9k .the direction cosine,m of vector A+B is

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Answered by 123456789512abc

7

Answer:

add the direction cosines a + b so and write three I minus j + k 78 + 5 y - 3 + 98 so it becomes 7 I minus 2j + 16k

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