Question

find the value of sin 225•​

Answer 1

Answer:

-1/√ 2

Step-by-step explanation:

sin 225 ∘  =  sin ( 180 ∘+ 45 ∘ )

=  sin 180 ∘  cos 45 ∘ +  cos 180 ∘  sin 45∘

=  ( 0 ) x  ( 1 /√ 2 )  +  ( − 1 )  x 1 /√ 2

=  -1/√ 2

Answer 2

Answer:

the value of sin 225=(-7071067812)

I hope it is helpful....