Simplify: {-2}{3}+{-1}{5}

Correct Answer is : (−38)\; {-3}{8}(8−3)

Correct Answer is : (−38)\; {-3}{8}(8−3)

Test Index

BECE Mathematics 2019 Paper

Question : 31

Total: 40

Simplify:

\binom{-2}{3}+\binom{-1}{5}

Solution:

Concept:

Vector addition is done component-wise: add the top components together and the bottom components together.

Explanation:

We need to simplify

\binom{-2}{3} + \binom{-1}{5}

First, add the top entries:

-2 + (-1) = -3

Next, add the bottom entries:

3 + 5 = 8

Therefore, the sum is

\binom{-3}{8}

This matches option C.

Answer:

\binom{-3}{8}

Correct option: C.

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