Question

Please tell me the answer of this​

Answer 1

Answer:

root3/2 is the answer pls mark brainliest

it is just sin 60

Answer 2

Answer:

√3/2

Step-by-step explanation:

 We know, sine is periodic at 2π, it means if sinA = x, then sin( A + 2π ) is also x, sin( A + 2nπ ) is also x for n ∈ W.

Here,

⇒ sin( 31π / 3 )

         31π = 30π + π

⇒ sin( 30π/ 3  + π/3 )

⇒ sin( 10π + π/3 )

⇒ sin( 2.5π + π/3 )

   which is similar to sin( π/3 )

⇒ sin( π/3 )

⇒ sin( 60° )

⇒ √3/2    { from table }

   Hence, correct option is √3/2