Question

expand cos alpha in ascending powers of alpha​

Answer 1

cos 0 is equal to 1 cos 90 is equal to zero cos 30 is equal to root 3 by 2 cos 45 is equal to 1 by root 2 and Cos 60 is equal to 1 by 2 I think you got the answer so follow me and make me as brainlinest

Answer 2

Answer:

cos O is equal to cos 90 is equal to zero cos 30 is equal to root 3 by 2 cos 45 is equal to 1by root 2and cos 60 is equal to 1 by 2 .