Answer:
I think that the answer is A
Step-by-step explanation:
Answer:
Solution in photo
Step-by-step explanation:
Answer:
It's 2b/3
Step-by-step explanation:
We know that
if <span>180º≤A≤270º
</span>then
A belongs to the III quadrant and tan A is positive
we have
5tan²A = 2tanA + 6-------> 5tan²A - 2tanA - 6=0
let
x=tan A
5x²-2x-6=0
using a graph tool----> to resolve the second order equation
see the attached figure
x=-0.91
x=1.314
remember that tan A is positive
the solution is
x=1.314
tan A=1.314
A=arc tan (1.314)--------> A=52.73°-----> A=52.7°
180º≤A≤270º
then
A=180+52.7-----> A=232.7°
the answer isA=232.7°
To reflect a function about the x-axis you simply have to multiply it by -1.
If f(x)=-(2^x)
g(x)=2^x is f(x) reflected about the x-axis.