[" 0.If "tan A=n tan B" and "sin A=m],[" sin "B" ,then the value of "cos^(2)A],[" is "]

If tanA=n tan B and sinA=m sin B, then the value of cos^2 A is यदि tanA=n tan B और sinA=m sin B, तो cos^2 A का मान है

If tan A=n tan B and sin A=m sin B, prove that cos^(2)A=(m^(2)-1)/(n^(2)-1)

If tan A = n tan B and sin A = m sin B , show that cos^(2)A= (m^(2)-1)/(n^(2)-1) .

If sin A=a cos B and cos A=b sin B then tan^(2)B =

If tan A = n tan B and sin A = m sin B, prove that : cos^(2) A = (m^(2) - 1)/(n^(2) - 1)

If tan A = (sin B)/(1 - cos B) ,then find the value of tan 2A .

(sin A)/(sin B)=(1)/(3) and (cos A)/(cos B)=2 then the value of 32tan^(2)A= ...

If tan A and tan B are the roots of the equation 3x^(2)-10x-25=0 then the value of 25cos^(2)(A+B)+10sin(A+B)cos(A+B)-3sin^(2)(A+B) is

If sin A+sin B=alpha a n d cos A+cos B=beta, then write the value of tan((A+B)/2)dot