Question

cos0 cos30 cos45 cos60 cos90​

Answer 1

Step-by-step explanation:

cos 0 =1

cos30=√3/2

cos45=1/√2

cos 60°=1/2

cos90=0

Answer 2

Answer:

$1 \times \frac{ \sqrt{3} }{2} \times \frac{ \sqrt{2} }{2} \times \frac{1}{2} \times 0$

0