Answer:
−π
----
4
Step-by-step explanation:
Alright, archtan /
tan
−
1
(
x
)
is the inverse of tangent. Tan is
sin
cos
. Like the inverse of sin, the inverse of tan is also restricted to quadrants 1 and 4.
Knowing this we are solving for the inverse of tan -1. We are basically being asked the question what angle/radian does tan(-1) equal. Using the unit circle we can see that tan(1)= pi/4.
Since the "Odds and Evens Identity" states that tan(-x) = -tan(x). Tan(-1)= -pi/4.
Knowing that tan is negative in quadrants 2 and 4. the answer is in either of those two quadrants. BUT!!! since inverse of tan is restricted to quadrants 1 and 4 we are left with the only answer -pi/4.
D.8
Multiply something to 6 that makes 48! So 6•8 would be 48!
Answer:
JL
JK
LK
Step-by-step explanation:
Side lengths and angle measurements are directly related, the larger the angle the longer the side. So the side opposite to the largest angle will be the greatest side. Therefore to order the sides first order the angles then find which sides are directly opposite of them in the same order.
Answer:
(7.5)^2 pi
Step-by-step explanation:
Circumference= pi x diameter
area= radius^2 x pi
radius= 1/2 diameter
1. find radius: 15/2= 7.5
2. square radius: (7.5)^2
3. multiply by pi: (7.5)^2 x pi
