Answer:
he read 27 and 3/4
Step-by-step explanation:
I am pretty sure it's 13 1/3
The base of 6 is the same, so add 1/2+1/2 =1
6^1 = 6
x = 60°
180 - 120 = 60
L.H.S=(1-cosB)(1+cosB)
=(1-cos^2B). {using (a+b) (a-b)=(a^2-b^2)in second step}
=sin^2B
=1/cosec^2B
Therefore,L.H.S=R.H.S proved
