Answer:
A
Step-by-step explanation:
Suppose x is odd. Then x^4 is also odd. So x^4 + 1 is even. Then for the whole function to be even, kx^2 should also be even. x^2 is obviously odd as x is odd. So to make kx^2 even, k should be even.
Now suppose x is <em>even</em>. Then x^4 + 1 is odd. So to make the function even, kx^2 should also be odd. But x is even, so kx^2 automatically becomes even, and then the whole function becomes odd. So the student's statement doesn't hold when x is even, no matter what the value of k is.
So the statement is true when x is odd and k is even.
Hope it helps and if it does, plzzzz mark me brainliest...
s represents the price of the shoes and you have to multiply that number times the 5% sales tax (0.05) because its 5 cents for every dollar. the equation would be:
Price=S+(S x 0.05)
Answer:
-3 sqrt(3) + 3 i
Step-by-step explanation:
6 cis ( 5 * pi / 6)
cis is (cos + i sin)
6 ( cos ( 5 pi /6) +i sin ( 5 * pi /6))
6 (-sqrt(3)/2 + i (1/2))
distribute
-3 sqrt(3) + 3 i