Asked by Amy
i wanted to make sure that both functions are the same.
y = 2 sin (4x + pi) +3
=
y = 2 sin 4 ((x) + (pi/4)) + 3
y = 2 sin (4x + pi) +3
=
y = 2 sin 4 ((x) + (pi/4)) + 3
Answers
Answered by
Anonymous
sin ( theta + pi ) = - sin ( theta )
sin ( 4x + pi ) = - sin ( 4x )
2 sin ( 4x + pi ) = - 2 sin ( 4x )
2 sin (4x + pi) + 3 = - 2 sin (4x) + 3 =
3 - 2 sin (4x)
sin ( 4x + pi ) = - sin ( 4x )
2 sin ( 4x + pi ) = - 2 sin ( 4x )
2 sin (4x + pi) + 3 = - 2 sin (4x) + 3 =
3 - 2 sin (4x)
Answered by
Reiny
For the second:
y = 2 sin <b>4 ((x) + (pi/4))</b> + 3
= 2 sin <b>(x + pi)</b> + 3 , I just distributed the 4 over the bracket
so, yes, they are the same
y = 2 sin <b>4 ((x) + (pi/4))</b> + 3
= 2 sin <b>(x + pi)</b> + 3 , I just distributed the 4 over the bracket
so, yes, they are the same
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