(1+tan alpha)(1+tan4 alpha)=2" and "alpha in(0,(pi)/(16))," then "alpha=

if (1+tan alpha)(1+tan4 alpha)=2 where alpha in(0,(pi)/(16)) then alpha equal to

If (1 + tan alpha) (1 + tan 4 alpha) = 2, alpha in (0, (pi)/(16)) , then alpha =

If (1+tan alpha)(1+tan 4alpha)=2, alpha epsilon(0,(pi)/(6)) , then alpha= .

If (1+tan alpha)(1+tan4 alpha)=2,alpha in(0,(pi)/(16)) then alpha is equal to (a) (pi)/(20) (b) (pi)/(30) (c) (pi)/(40) (d) (pi)/(60)

If (1+ tan alpha)(1+ tan 4alpha)=2, alpha in (0, pi//16) , then alpha is equal to:

if (1+tan alpha )(1+tan4 alpha ) =2 where alpha in (0 , pi/16 ) then alpha equal to

If (1+tanalpha)(1+tan4alpha)=2,alpha in (0,pi/(16)), then alpha is equal to

If (1+tanalpha)(1+tan4alpha)=2,alpha in (0,pi/(16)), then alpha is equal to

If (1+tanalpha)(1+tan4alpha)=2,alpha in (0,pi/(16)), then alpha is equal to (a) pi/(20) (b) pi/(30) (c) pi/(40) (d) pi/(60)