Find the first derivative of
y
=
11
cos
(
8
x
2
+
12
)
\displaystyle {y}={11}{\cos{{\left({8}{x}^{{2}}+{12}\right)}}}
y
=
11
cos
(
8
x
2
+
12
)
.
d
y
d
x
=
\displaystyle \frac{{\left.{d}{y}\right.}}{{\left.{d}{x}\right.}}=
d
x
d
y
=
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