Question

find cos7π/8................. ​

Answer 1

Answer:Should be Cos of 157,5 Degrees

Step-by-step explanation:You divide 360 per 8x2

and thats how much π/8 is, then you find 7π/8 and get ur Cos7π/8

Answer 2

Answer:

Step-by-step explanation:

answer of this is -0.125