Example

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

Question

$$d s - b s - d s - b s$$

Evaluate

$-2bs$

Show Solution

Differentiate w.r.t. b

$-2s$

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