Question

Given that sina = 1/2and cosß = 1/2then the value of a + B is...............​

Answer 1

Answer:

in degree;

a+b=90°

or, in radian:

a+b= π/2

Step-by-step explanation:

since, sin a= 1/2 and cos b= 1/2

so, a= sin ^-1(1/2) and b=cos^-1(1/2)

therefore, a= 30° b= 60° {since, sin30°=1/2 and cos60°=1/2}

hence, a+b= 30°+60° =90°