Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(-a+2)+(-b-2)$$

Evaluate

$-a-b$

Show Solution

Differentiate w.r.t. a

$-1$

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