Question

Sin(2tan inverse 2/3)+cos(tan inverse root 3)

Answer 1

Step-by-step explanation:

it's ans is 37/26.i think it is helpful for you

Answer 2

(13+4×13^.5)/26

Step-by-step explanation:let 2tan inverse2/3=a

Or,tan(a/2)=2/3

Or sin(a/2)=2/13^0.5

Again,

Let tan inverse3^.5=b

Or,3^0.5= tanb

Or,cosb=0.5

Then,sin(sin inverse 2/13^0.5)+cos(cos inverse0.5)

=(13+4×13^0.5)/26