Answer:
.1
Step-by-step explanation:
on APEX its d) pi/2
Answer: a/c = 1
a/b = 1/2 => a = 1/2 .b
b/c = 2 => c = 1/2 .b
=> a/c = (1/2.b)/(1/2.b) = 1
Some of the products do not show the correct powers of x.
D