" If "tan2 alpha=(3)/(4)," then find "tan alpha

If tan 2 alpha=(3)/(4) , then find tan alpha .

" If "alpha=(2 pi)/(7)" ,and "tan alpha tan2 alpha+tan2 alpha tan4 alpha+tan4 alpha tan alpha=K" .Then "3k^(2)+4k+5=" ."

" If "20 alpha=pi" then tan "alpha" .tan2"alpha" .tan3"alpha" ....."tan9 alpha=

If alpha=(2 pi)/(7), then tan alpha tan2 alpha+tan2 alpha tan4 alpha+tan4 alpha tan alpha

tan(alpha+beta)=(1)/(2),tan(alpha-beta)=(1)/(3), then find the value of tan2 alpha

" If alpha=(2 pi)/(7) ,then the value of tan alpha tan2 alpha+tan2 alpha tan4 alpha+tan4 alpha tan alpha is "

If sec alpha=(5)/(4), verify that (tan alpha)/(1+tan^(2)alpha)=(sin alpha)/(sec alpha)

If sec alpha=(5)/(4), evaluate (1-tan alpha)/(1+tan alpha)

If cos(alpha+beta)=(5)/(13) and cos(alpha-beta)=(4)/(5) then find the value of tan2 beta

If 5tan alpha tan beta=3 , then find the value of (cos(alpha+beta))/(cos(alpha-beta))