Question

if sin(a +b)=root 3/2 and sinb =1/2 find a and b​

Answer 1

Answer:

7.5

Step-by-step explanation:

we know that

sin 60=\frac{\sqrt{3} }{2}23

and

sin 30=\frac{1}{2}21

now a+b=60

     (+)a-b=30

⇒ 2a=90

⇒a=45

substitute value of a in a+b=60

⇒45+b=60

⇒b=15

hope it helps...