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