1) Sin (A+B) = 1
Cos (A+B) =√3/2
,find A and B
2) Sin (A+B) = 1
Cos (A-B)=0
find A and B.
Answers
Answered by
8
Answer:
sin(A+B)=1
cos(A-B)=√3/2
We know sin-¹ =90
A+B=9-----[1]
cos (A-B)=root 3/2
A-B=cos-¹ root 3/2
We know cos-¹ root 3/2=30
A-B=30 ---[2]
Solve [1] and [2]
A+B=90
A-B=30 add
2A=120
A=60 B=30
final answer== A=60======B=30
Similar questions