Question

Kindly :( can anyone give me an example of the chart above ?

Answer 1

Sin(30°) =1/2 0.5

cos(30°) = (√3)/2


Note that the sin of an angle is equal to the cos of the complementary angle:

sin(60°) =cos(30°) = (√3)/2 since 30+60 = 90 (compl. angle)