Trigonometry:
We know that csc x = 1 / sin x and π = 180°;
sin 5π/ 6 = sin 150° = 1/2
csc 2π / 3 = 1 / sin 120° = 1 / √3/2 = 2 / √3
Finally:
4 · 1/2 + 7 · ( 2 / √3 )² = 2 + 7 · 4/3 =
= 2 + 28/3 = 2 + 9 1/3 = 11 1/3
This may not be correct sorry , 16÷11 = 1.454545454545454545454545
Answer:
B. −x^2+2x+4
Step-by-step explanation:
(f-g)(x)
fx - g=
6x^2+4x−7−2x−7x^2+11
=6x^2+4x+−7+−2x+−7x^2+11
Combine Like Terms:
=6x^2+4x+−7+−2x+−7x^2+11
=(6x^2+−7x^2)+(4x+−2x)+(−7+11)
=−x^2+2x+4
This is not math. Inflation is inflation
