Question
If $\Delta$ is an operation on integers such that $\text{a }\Delta\text{ b}=-\text{a}+\text{b}-(-2)$ for all integers a, b. Find the value of: $6\ \Delta\ (-5)$
✓
Answer
Given, $\text{a }\Delta\text{ b}=-\text{a}+\text{b}-(-2)$$6\ \Delta\ (-5)=-6 + (-5) - (-2)$
$=-6-5+2$
$=-11+2$
$=-9$
$=-6-5+2$
$=-11+2$
$=-9$
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→If $\Delta$ is an operation on integers such that for integers $a$ and $b, a \Delta b=a-b-(-5)$. Find the value of
(i) $(-7) \Delta 3$
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→→(i) $(-7) \Delta 3$
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(iv) $4 \Delta(-5)$
