Answer:
5(9+6)
5×9=45
5×6=30
I hope this is good enough:
Answer is B
Step-by-step explanation:
Answer:it's a positive integer
y
1/2
Given:
sinx=-1/2
cosy=√3/2
finding x
x=sin^-1(-1/2)
x=-π/6
x=-30°
finding y
y=cos^-1(√3/2)
y=π/6
y=30°
Now finding cos(x-y)
cos(-π/6-π/6)
=cos(-π/3)
=1/2!
