Question

find the value of sin 210 with explanation​

Answer 1

Step-by-step explanation:

Convection is the transfer of heat due to the bulk movement of molecules within fluids, including molten rock. Convection includes sub-mechanisms of advection, and diffusion. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place.

Answer 2

Step-by-step explanation:

Sin 210=sin(90+120)=cos 120

Now, cos120=2cos^2 60-1=2×1/4-1=1/2-1. So cos120=-1/2