Physics, asked by taniya07, 1 year ago

If the vectors i - 3j + 5k and i - 3j - ak are equal vectors then the value of a​

Answers

Answered by jesnajp555
32

Answer:

-5

Explanation:

since two vectors are equal,

5k = -ak

=> a = -5

Answered by windyyork
17

Answer: The value of a is -5.

Explanation:

Since we have given that

\vec{a}=\hat{i}-3\hat{j}+5\hat{k}\\\\and\\\\\vec{b}=\hat{i}-3\hat{j}-a\hat{k}

Since they are equal vectors.

And we know that if the vectors are equal, then,

coefficient of i, j, and k should be equal.

so, Comparing both the vectors, we get that

-a=5\\\\a=-5

Hence, the value of a is -5.

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