-i - 5j
-9 - j
i + 5j
-9i + j
Correct answer is A
¯PQ = 5i - 2j; ¯QR = 4i + 3j
¯RP = ¯PQ - ¯QR
= 5i - 2j - [4i + 3j] = 5i - 2j - 4i - 3j
= i - 5j
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