what is pi/2 -7pi/3

To find the value of π/2 - (7π/3), we need to get a common denominator for the two fractions. The common denominator of 2 and 3 is 6.

π/2 can be written as (3π/6) and 7π/3 can be written as (14π/6).

Now, we can subtract the fractions:

(3π/6) - (14π/6) = (3π - 14π)/6 = -11π/6

Therefore, π/2 - (7π/3) is equal to -11π/6.