Question

Maximum value of 3sin (x+bay/9)+5sin (x+4bay/9) ?

Answer 1

bay?

`z = 3 sin(x+y/9) + 5 sin(x+{4y}/9)`

We have two variables so it's possible both arguments will be `pi/2` or `90^circ` at the same time, giving a maximum of

`z_max = 3 + 5 = 8`