The coordinates for Point W should be (8,0). This is because Point W is stated to be 8 units away from the origin (0,0) on the x axis. If Point W is 8 units away from (0,0) aka the origin, and on the x axis, then Point W has to be (8,0).
Answer:
-6 i believe
Step-by-step explanation:
replace x with 4
Solution
= 20s^3 + 50s^2 + 32s + 6
Therefore the answer is option 4
Below I attached a photo showing the rules of Algebraic expansion
Answer:
is an even function.
Step-by-step explanation:
Recall when it means when a function is even or odd. An even function has the following property:
And an odd function has the following property:
So, let's test some values for cos(x).
Let's use π/3:
From the unit circle, was can see that this is 1/2 (refer to the x-coordinate).
Now, let's find -π/3. This is the same as 5π/3. Thus:
And again from the unit circle, we can see that this is 1/2.
Therefore, despite the negative, the function outputs the same value.
Cosine is an even function.
Notes:
Cosine is an even function and sine is an odd function. It's helpful to remember these as they can help you solve some trig problems!