Question

If sin(A-B)=
1
/2
, cos(A+B)=

1
/2
0O<A+B≤90O , A>B. Find A and B​

Answer 1

Answer:

A = 45 , B = 15

Step-by-step explanation:

lets think in logical way that makes math fun and simpler

when does sin turns 1/2

simple at 30 degree

therefore A-B = 30

similarly when does cos turns 1/2

simple at 60 degree

therefore A + B = 60

add both the equation which gives

2A = 90

A = 45

and substitute A in any of the above equation

which gives B = 15