If `tan (alpha - beta) = 7/24` and `tan alpha = 4/3`, where `alpha , beta` are in first quadrant P.T `alpha + beta = pi//2`

If tan (alpha- beta )= (7)/(24) and tan alpha =(4)/(3) , where alpha and beta are in the first quadrant prove that alpha + beta = pi //2

If 2tan alpha=3tan beta then tan(alpha-beta)=

If cos alpha=tan beta and cos beta=tan alpha where alpha and beta are acute angles then sin alpha

If alpha+beta=pi/4 then (1+tan alpha)(1+tan beta)=

If alpha+beta=pi/4 then (1+tan alpha)(1+tan beta)=

If a tan alpha+b tan beta=(a+b) tan ((alpha+beta)/2) , where alpha ne beta , prove that : a cos beta= b cos alpha .

If alpha+beta=(pi)/(2) and beta+gamma=alpha then tan alpha=