Answer: - = less than
x = product
/ = quotient
= is
Step-by-step explanation:
Answer: induction
Step-by-step explanation:
You can add $2.55 three times; or you can multiply $2.55 times 3. Either way you will have the answer of $7.65 as your total.
I hope that helped you. (:
Answer:
Using long devision
Step-by-step explanation:
I believe the answer is B
Answer:
The solutions on the given interval are :




Step-by-step explanation:
We will need the double angle identity
.
Let's begin:

Use double angle identity mentioned on left hand side:

Simplify a little bit on left side:

Subtract
on both sides:

Factor left hand side:
![\sin(x)[4\cos(x)-1]=0](https://tex.z-dn.net/?f=%5Csin%28x%29%5B4%5Ccos%28x%29-1%5D%3D0)
Set both factors equal to 0 because at least of them has to be 0 in order for the equation to be true:

The first is easy what angles
are
-coordinates on the unit circle 0. That happens at
and
on the given range of
(this
is not be confused with the
-coordinate).
Now let's look at the second equation:

Isolate
.
Add 1 on both sides:

Divide both sides by 4:

This is not as easy as finding on the unit circle.
We know
will render us a value between
and
.
So one solution on the given interval for x is
.
We know cosine function is even.
So an equivalent equation is:

Apply
to both sides:

Multiply both sides by -1:

This going to be negative in the 4th quadrant but if we wrap around the unit circle,
, we will get an answer between
and
.
So the solutions on the given interval are :



