6= 2D/5
5 x 6 = 30
30/2D
15=D
Answer:
9?
Step-by-step explanation:
9 + 7 is `16, and 16 is a multiple of 4
<span>arccos (cos pi/2)=?
</span>cos pi/2=0, arccos (0)=?, we know that cos pi/2=0, so cos^-1 (o)= Pi/2, but cos^-1 (o)=arccos (0), so arccos (cos pi/2)=Pi/2
Answer: 423
Step-by-step explanation:
