Question

a=b=30,sin(a+b)=sina cosb +cosa +sinb​

Answer 1

Answer:

here is your answer

Step-by-step explanation:

given angle a and angle b are equal to 30°

consider,

L.H.S

sin(30°+30°) = sin60° = √3/2

R.H.S

(sin30°)( cos 30°) + (cos30°)( sin30°)

1/2 * √3/2 + √3/2* 1/2

√3/4+√3/4

√3/2

therefore

sin(a+b) = Sin a cos b + cos a sin b