Simplify the following expression. 4
₃ 4
O A. 12
OB.
1
64
OC.
1
12
OD. 64
Help don’t very much understand

1

Step-by-step explanation:

Using the definition

n =

where n! = n(n - 1)(n - 2)......

Thus

4

= ← cancel 4! on numerator and denominator

= { 0! = 1 ]

=

= 1

55? i think maybe

step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2