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Mathematics
Problem
For
p
(
x
)
=
6
x
7
−
5
x
3
+
2
sin
x
−
4
cos
x
p(x)=6x^{7}-5x^{3}+2\sin x-4\cos x
p
(
x
)
=
6
x
7
−
5
x
3
+
2
sin
x
−
4
cos
x
, the derivative
p
′
(
x
)
p'(x)
p
′
(
x
)
equals a)
42
x
6
−
15
x
+
2
cos
x
+
4
sin
x
42x^{6}-15x+2\cos x+4\sin x
42
x
6
−
15
x
+
2
cos
x
+
4
sin
x
b)
42
x
6
−
15
x
2
+
2
sin
x
+
4
cos
x
42x^{6}-15x^{2}+2\sin x+4\cos x
42
x
6
−
15
x
2
+
2
sin
x
+
4
cos
x
c)
42
x
6
−
15
x
2
+
2
cos
x
+
4
sin
x
42x^{6}-15x^{2}+2\cos x+4\sin x
42
x
6
−
15
x
2
+
2
cos
x
+
4
sin
x
d)
42
x
6
−
15
x
2
+
2
cos
x
−
4
sin
x
42x^{6}-15x^{2}+2\cos x-4\sin x
42
x
6
−
15
x
2
+
2
cos
x
−
4
sin
x
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