Given that sin(a) = 1/3 and cos(b) = -2/6 with a and b both in the interval [ ?/2, ?], find the exact values of sin(a + b) and cos(a ? b).
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
(Save $1 )
One time Pay
(Save $5 )
Billed Monthly
*First month only
You can see the logs in the Dashboard.