x^(2)cos x

(cos^(2)x+cos x+2)/(cos^(2)x+cos x+1) find range.

6tan^(2)x-2cos^(2)x=cos2x if cos2x=

When the determinant |{:(cos2x,sin^(2)x,cos4x),(sin^(2)x,cos2x,cos^(2)x),(cos4x,cos^(2)x,cos2x):}| is expanded in powers of sin x , the constant term in than or equal to expression is

If the determinant |(cos2x,sin^2 x,cos 4x),(sin^2 x,cos 2x,cos^2 x),(cos 4x,cos^2 x,cos 2x)| is expanded in powers of sin x , then the constant term is

If the determinant |(cos2x,sin^2 x,cos 4x),(sin^2 x,cos 2x,cos^2 x),(cos 4x,cos^2 x,cos 2x)| is expanded in powers of sin x, then the constant term is

When the determinant |{:(cos2x,sin^(2)x,cos4x),(sin^(2)x,cos2x,cos^(2)x),(cos4x,cos^(2)x,cos2x):}| is expanded in powers of sin x , the constant term is equal to expression is

The period of f(x)=cos2x+2cos x+1 is

f(x)=cot^(2)x*cos^(2)x, g(x)=cot^(2)x-cos^(2)x

f(x)=cot^(2)x*cos^(2)x, g(x)=cot^(2)x-cos^(2)x