[" If "tan alpha=(m)/(m+1)" and "tan beta=(-)/(2r)],[(pi)/(3)],[(pi)/(4)],[(pi)/(6)],[(pi)/(2)]

If tan alpha=m/(m+1) and tan beta=1/(2m+1) ,prove that alpha+beta=pi/4 .

If tan alpha=(x)/(x+1) and tan beta=(1)/(2x+1), then alpha+beta is equal to pi/2(b)pi/3(c)pi/6(d)pi/4

If tan alpha=(x)/(x+1) andtan beta=(1)/(2x+1), then alpha+beta is equal to (pi)/(2) b.(pi)/(3) c.(pi)/(6) d.(pi)/(4), then alpha+beta

If tan alpha=(5)/(2),tan beta=-(7)/(9) where alpha in[(pi)/(2),pi], then alpha+beta lies in the interval.[(3 pi)/(2),(7 pi)/(3)] (b) [(13 pi)/(6),(5 pi)/(2)][(13 pi)/(6),(7 pi)/(3)] (d) [(pi)/(6),(pi)/(3)]

If alpha and beta are acute angles such that tan alpha=(m)/(m+1) and tan beta=(1)/(2m+1), prove that alpha+beta=(pi)/(4)

lim alpha=(m)/(m+1),tan beta=(1)/(2m+1), prove that alpha+beta=(pi)/(4)

"tan"^(2)(pi)/(4) "sin"(pi)/(3) "tan"(pi)/(6) "tan"^(2)(pi)/(3) =

If tan alpha=(5)/(6) and tan beta=(1)/(11) , alpha and beta in (0,(pi)/(4)) . Then the value of cos[pi-(a+beta)] is

If tan alpha=(5)/(6) and tan beta=(1)/(11) , alpha and beta in (0,(pi)/(4)) . Then the value of cos[pi-(a+beta)] is

If cos alpha=-(3)/(5) and sin beta=(7)/(25) where (pi)/(2)