Question

if sin(A-B)=1/2,cos(A+B)=1/2,0≤A+B≤90,A>B,THEN FIND THE VALUE OF A and B​

Answer 1

Answer:

A=45 , B=15

Step-by-step explanation:

1.sin(A-B)=1/2

sin(A-B)=sin30

A-B=30 , equation 1

2.cos(A+B)=1/2

cos(A+B)=cos60

A+B=60 , equation 2

add equation 1 & 2

A-B=30

A+B=60

_______

2A= 90

A=90/2

A=45

& A-B=30

B=A-30

= 45-30

therefore A=45 , B=15

Hope u understand