Question

if sinA = 1/2, cosA = 1/2, then the value of A+B is​

Answer 1

Answer:

a+b is 90 degree

Step-by-step explanation:

because sin 30 +cos 60 so 90 degree

Answer 2

Step-by-step explanation:

answer.....

sinA-B= 1/2

=> sin A-B =sin 30°

=>. A-B=30°......(I)

also,. cos A+B=1/2

=>cos A+B=cos 60°

=> A+B=60°.......(ii)

by adding (I) and (ii),we get...

2A=90°

=>A= 45°{answer}

putting the value of A in (ii),we get...

45°+B=60°

=>B=60°-45°

=>B=15°{answer}

hence the value of A and B are 45°and 15° respectively.