Question

1) sin 7500 cos 4800 + cos 1200 cos 600 =
2​

Answer 1

Answer:

False

Step-by-step explanation:

(sin(7500))(cos(4800))+(cos(1200))(cos(600))=2

−1.7937020000000001≠2

False

Answer 2

Answer:

sin(7200+300) cos (3600+1200) +cos 1200 cos (360+240)

-sin300 cos 1200 +cos 1200 cos240

cos 1200 (-sin300 +cos ( 180 +60))

cos 600 ( - sin( 360 - 60) -cos60)

-cos60 ( sin60 - cos 60)

-1/2 ( root3/2 -1/2)

root3 -1 /4 answer

which is not equal to 2

Step-by-step explanation:

hope it helps ✌