2 cos 75° cos 15° =____________________
Posted: Wed Jul 13, 2022 8:09 pm
a) \(\frac{\sqrt{3}}{\sqrt{2}}\)
b) \(\frac{1}{2}\)
c) \(\frac{\sqrt{3}}{2}\)
d) \(\frac{1}{\sqrt{2}}\)
b) \(\frac{1}{2}\)
c) \(\frac{\sqrt{3}}{2}\)
d) \(\frac{1}{\sqrt{2}}\)