Step-by-step explanation:
Consider LHS
Apply quotient identies
Multiply the fraction and sine.
Make cos x a fraction with cos x as it denominator.
so
Pythagorean Identity tells us sin squared and cos squared equals 1 so
Apply reciprocal identity.
Answer:
Formula for the Arc length is given by:
As per the statement:
radius of circle(r) = 6 units
Angle () = radian
Use conversion:
=
then;
substitute these given values we have;
Use value of
or
Simplify:
Therefore, the arc length of the arc substended in a circle with radius 6 units an angle of 7 pi/8 is 16.485 units
Solving a polynomial inequation
Solving the following inequation:
(x - 8) (x + 1) > 0
We are going to find the sign both parts of the multiplication,
(x - 8) and (x + 1), have when
x < - 8
-8 < x < 1
1 < x
Then we know (x - 8) (x + 1) > 0 whenever (x - 8) (x + 1) is positive
We can see in the figure (x - 8) (x + 1) is positive when x < -8 and x > 1
Then
Answer:B
Answer: y=1/2x−2
Step-by-step explanation: