Question

plz answer for 60 points
​

Answer 1

Answer:

A = 45° , B = 45°

Step-by-step explanation:

It is given that,

i) sin(A+B) = 1

=> sin(A+B) = sin90°

=> A+B = 90° ----(1)

ii) cos(A-B) = 1

=> cos(A-B) = cos0°

=> A-B = 0° ----(2)

Add equations (1)&(2), we get

=> A+B+A-B=90°-0°

=> 2A = 90°

=> A = 90°/2

=> A = 45°

Substitute A=45° in equation (1), we get

45°+B = 90°

=> B = 90° - 45°

=> B = 45°

Therefore, A = 45° , B = 45°

Mark me brainliest :)

Answer 2

Answer:

45 and 45 respectively

Step-by-step explanation:

Sin (A+B)=1

which means A+B=90°

since sin 90°=1

A-B= 0 since Cos A-B=1

so A=B

since A+B=90

2A=90

A=45 and also B = 45