Can You Solve 0.221=sinθcosθ for θ Without a Calculator?

[hahaha158]

Homework Statement

i have the equation 0.221=sinθcosθ. I want to find the vaue of θ. Is there anyway i can solve this with or without a calculator? (solver function on both my calculator and wolfram alpha do not work)

thanks

 

[Dick]

Homework Statement

i have the equation 0.221=sinθcosθ. I want to find the vaue of θ. Is there anyway i can solve this with or without a calculator? (solver function on both my calculator and wolfram alpha do not work)

thanks

sin(2θ)=2*sin(θ)*cos(θ). Try using that.