Question

If cot (a + b) = 0, then sin (a + 2b) =​

Answer 1

Answer:

cos b

Step-by-step explanation:

cot(a+b)=0,

cot(π/2)=0, a+b=π/2

then,sin((a+b)+b),

sin((π/2)+b),

cos b

therefore,sin(a+2b)=cos b