sin alpha+cos alpha=sqrt(2)cos alpha2cos(3^(cos13))tan2 alpha=1

If sin alpha+cos alpha=sqrt(2)cos alpha then show that tan2 alpha=1

If sin alpha + cos alpha = sqrt2 cos alpha,"show that",tan 2 alpha = 1

If sinalpha+cos alpha=sqrt2 cos alpha then prove that tan 2alpha=1

sin 2 alpha - cos 2 alpha tan alpha =

Prove that sin^(4) alpha + cos^(4) alpha + 2 sin^(2) alpha cos^(2) alpha = 1 .

Prove that, (sin alpha + cos alpha)/(cos alpha-sin alpha)=tan2 alpha + sec 2 alpha

If tan theta=(sin alpha-cos alpha)/(sin alpha+cos alpha), prove that 2cos^(2)theta=1+sin2 alpha

prove that (sin alpha+sin3 alpha+sin5 alpha)/(cos alpha+cos3 alpha+cos5 alpha)=tan3 alpha

If tan theta=(sin alpha- cos alpha)/(sin alpha+cos alpha) , then

Prove that (sin alpha+sin2 alpha+sin3alpha+sin4alpha)/(cos alpha+cos 2 alpha+cos 3 alpha+cos4 alpha)=tan((5 alpha)/2)