If the magnitude of the vector 8i+aj, which is in the direction of the vector 4i+3j, is 10, what is the value of a?

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4i+3j എന്ന സദിശത്തിന്റെ ദിശയിലുള്ള 8i+aj എന്ന സദിശത്തിന്റെ വലിപ്പം 10 ആയാൽ a യുടെ വില ?

C-3

Answer:

A. 6

Read Explanation:

8i+aj || 4i+3j |8i+aj| = 10 |8i+aj|²=10² 64+a²=100 a²=36 a=±6 a=6

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