Test Index

WAEC Further Mathematics 2021 Paper

© africaexams.com

Question : 19

Total: 38

In △PQR,

\overline{PQ}

\overline{QR}

= 4i + 3j. Find

\overline{RP}

.

-i - 5j
-9 - j
i + 5j
-9i + j

Solution:

$\overline{PQ}$ = 5i - 2j; $\overline{QR}$ = 4i + 3j

$\overline{RP}$ = $\overline{PQ}$ - $\overline{QR}$

= 5i - 2j - [4i + 3j] = 5i - 2j - 4i - 3j

= i - 5j

© africaexams.com

Go to Question:

Prev Question

Next Question