Question

What is the principal value of cos -1    π  +     −  π − 3 2 sin sin 3 2?

Answer 1

Answer:

32 sin sin 32

Step-by-step explanation:

dhdhgdgyr gdhdhdhhd dhhdhjvdg

chhcjgcj

dgjfjlfjkgjfjfjfihfikf

fjgskfjsushdusg