Question

please tell the answer fast please​

Answer 1

Answer:

1st option is the right answer..

Step-by-step explanation:

[cos(2∅) - 2cos(4∅)]÷[sin3∅ + 2sin4∅]

∅=150

= [cos450 - 2cos600]÷[sin450 + 2sin600]

= [cos90 - 2cos120]÷[sin90 - 2sin120]

= [0 - 2(-1/2)]÷[1 - √3]

=1/(1-√3)

= -1/2 - √3/2

or = -(1+√3)/2

hope it helps you