In circle N below, ST is a diameter. Find the value of x. R
(4x - 5)
7
(3x + 11)
S
7
O 12
O 13
15
1

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

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it