How do you solve 2sinxsinx equals 1?

2sinxsinx=1

(sinx)(sinx)=1/2

sinx=1/4=o.25

since, roughly, for small x values, sin x = x

then x=0.25

Otherwise, to be more accurate, we proceed as follows:

sinx=0.25 (as given before)

then

x=arc sin 0.25=0.2526803