its true because -1 to even power is positive, -1 to odd power is negative
Answer:
Given,
We state why it is true.
Lets check for some values of n.
for n = 0
⇒
for n = 1
for n = -1
for n = 2
for n = -2
So, Its clear from above . value of cos nπ is either 1 or -1.
value of cos nπ is 1 when n is even integer and -1 when n is odd integer.
C. Should not have a bank
Answer:15.00
Step-by-step explanation:
(4, 2.5)
2.5 = 2
They are asking, like units are in the sum
<em>y = - x - 10 </em>
y - (- 3) = - (x + 7)
<em>y = - x - 10</em>