" The equation "y=A cos^(2)(2 pi nl-(2 pi x)/(lambda))" represents a wave with "

The equation y=A cos^(2) (2pi nt -2 pi (x)/(lambda)) represents a wave with

The equation y=A cos^(2) (2pi nt -2 pi (x)/(lambda)) represents a wave with

The equation y=Acos^(2)[2pint-2pi(x)/(lamda)] represents a wave with

An equation y = a cos ^( 2 ) (2 pi nt - (2pi x ) / ( lamda ) ) represents a wave with : -

An equation y = a cos ^( 2 ) (2 pi nt - (2pi x ) / ( lamda ) ) represents a wave with : -

An equation y = a cos ^( 2 ) (2 pi nt - (2pi x ) / ( lamda ) ) represents a wave with : -

Does the wave function y=A_(0) cos^(-2)(2pi f_(0)t(2pi x)/(lambda_(0))) represent a wve ?if yes. Then determine it's amplitude, frequency and wave-length .