Both a) y=sin (x+ pi/2) and b) y=-cos(x-pi) has identical graphs.
The +- pi/2 shifts to the LEFT or RIGHT respectively. So the first plot is simply a cosine curve.
The second is a cosine shifted by pi, which gives -cos(x) but we have a negative out front so both (a) and (b) are cosine.
Answer:
x = 2 and y = -1
Step-by-step explanation:
that is the solution above
25 tens is the same as 250
Answer:
it seems to be 2.63M
Step-by-step explanation:
Answer:
ΔDEF
Step-by-step explanation:
T ↔ D S ↔ E R ↔ F
ΔTSR is similar to ΔDEF