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Apply sum and difference rules (#521)
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Apply sum and difference rules (#521)
Differentiate
f
(
x
)
±
g
(
x
)
f(x) \pm g(x)
f
(
x
)
±
g
(
x
)
to
f
′
(
x
)
±
g
′
(
x
)
f'(x) \pm g'(x)
f
′
(
x
)
±
g
′
(
x
)
.
