Answer:
-7/18
Step-by-step explanation:
cos(2x) = 1 - 2sin²x
cos(2x) = 1 - 2(5/6)²
= 1 - 2(25/36)
= 1 - 25/18
= -7/18
I don't know the answer to this one so could someone please tell me
Thanks
D
since 45027/3 is is 15009 and 804597/3 is 268199