Question

Solve this ⬇⬇⬇⬇

sin 330°.cos 120° + cos 210° .sin 300°​

Answer 1

$\red{answer}$

Sin330=-sin30

cos120=-cos60

cos210=-cos30

sin300=-sin60

Using these values

(1/2)(1/2)+(√3/2)(√3/2)

1/4+3/4=1

Answer 2

answer ☺️☺️

Sin330=-sin30

cos120=-cos60

cos210=-cos30

sin300=-sin60

Using these values

(1/2)(1/2)+(√3/2)(√3/2)

1/4+3/4=1