Given that sin(a) = 1/3 and cos(b)= -2/6 with a and b both

Last updated: 8/6/2022

Given that sin(a) = 1/3 and cos(b)= -2/6 with a and b both in the interval [π/2, π] find the exact values of sin(a + b) and cos(a − b). Step 1: Since sin(a)= 1/3 and a in the interval [π/2, π] cos(a) Step 2: Since cos(b) = -2/6 and b in the interval [and b in the interval/2, and b in the interval] Step 3: cos(a - b) =