Question

2. If Sin(A + B) = 1 and Cos(A-B) = 1.Find the values of A and B
2* point​

Answer 1

Answer:

Sin(A+B)=1=sin90°

cos(A-B)=1=cos0°

A+B=90......(i)

A-B=0.......(ii)

i+ii,

2A=90

or,A=45

putting the value of A in (i) we get,

45+B=90

or, B=45

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