[" एहरण 5.यदि "alpha+beta=(pi)/(4)," तो सिद्ध कीजिए कि : "],[qquad (1+tan alpha)(1+tan beta)=2]

If alpha+dot(beta)=(pi)/(4), then the value of (1+tan alpha)(1+tan beta)

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 alpha + beta = 3pi//4 " then " (1- tan alpha ) (1- tan beta ) =

a + beta = (3 pi) / (4) rArr (1-tan alpha) (1-tan beta) = 10 (3) / (2)

If tan (alpha- beta)= (sin 2 beta)/(5-cos 2 beta) , find tan alpha: tan beta .

[ 7.If 0ltalphaltbetalt(pi)/(2) then [ 1) (tan beta)/(tan alpha)lt(alpha)/(beta), 2) (tan beta)/(tan alpha)gt(alpha)/(beta) 3) (tan alpha)/(tan beta)lt(alpha)/(beta) , 4) none ]]

If sin (alpha + beta)=1, sin (alpha- beta)= (1)/(2) , then tan (alpha + 2beta) tan (2alpha + beta) =

Statement-I : If f(theta)=(cot theta)/(1+cot theta) and alpha+ beta=(5pi)/(4) then f(alpha) f(beta)=(1)/(2) Statement-II : If alpha+ beta=(pi)/(2) and beta+ gamma= alpha then tan alpha= tan beta+ 2tan gamm Statement-III sin^(2) alpha+ cos^(2) (alpha+ beta)+2 sin alpha beta cos (alpha+beta) is independent of alpha only