Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help
cos (4pi/3 – 3pi/4)
2 answers
Use the cos(A-B) identity.
4pi/3 – 3pi/4
= 7pi/12
you posted this version already, and I answered it.
= 7pi/12
you posted this version already, and I answered it.
0 answers