if `mtan(theta-30)=ntan(theta+120)`, show that `cos2theta=(m+n)/(2(m-n))`.

Similar Questions

Explore conceptually related problems

if m*tan(theta-30)=n*tan(theta+120), show that cos2 theta=(m+n)/(2(m-n))

m tan(theta-30^(@))=n tan(theta+120^(@)) show that cos2 theta=(m+n)/(2(m-n))

If 3tan(theta-30)=tan(theta+120) then the value of cos2 theta equals

If tan(alpha+theta)=n tan(alpha-theta), show that (n+1)sin2 theta=(n-1)sin2 alpha.

If mtan(theta-30^(@))=ntan(theta+120^(@)) , then (m+n)/(m-n)=?

If m tan(theta-30^(@))=n tan(theta+120^(@)) then (m+n)/(m-n) is equal to

If tan (alpha+theta)=n tan (alpha-theta) ,show that: (n+1)"sin" 2theta=(n-1) sin 2alpha

If tan (alpha + theta) = n tan(alpha - theta) , show that : (n + 1) sin 2 theta = (n - 1) sin 2alpha .

If m sin theta=n sin(theta+2 alpha), prove that tan(theta+alpha)cot alpha=(m+n)/(m-n)