[12],[hline18" If "alpha=cos^(-1)((3)/(5)),beta=tan^(-1)((1)/(3))," where "],[0

If alpha=cos^(-1)((3)/(5)),beta=tan^(-1)((1)/(3)), where 0

If alpha=cos^(-1)((3)/(5)),beta=tan^(-1)((1)/(3)) , where 0ltalpha,betalt(pi)/(2) , then alpha-beta is equa to :

If alpha = cos^(-1)((3)/(5)), beta = tan ^(-1)((1)/(3)) , where 0 lt alpha, beta lt (pi)/(2) , then alpha - beta is equal to

If alpha=tan^(-1)(tan(5 pi)/(4)) and beta=tan^(-1)(-tan(2 pi)/(3)), then 4 alpha=3 beta(b)3 alpha=4 beta(c)alpha-beta=74 alpha=(3 beta)/(12) none of these

If alpha=tan^(-1)(t a n(5pi)/4)a n dbeta=tan^(-1)(-tan((2pi)/3)),t h e n (a) 4alpha=3beta (b) 3alpha=4beta (c) alpha-beta=74alpha=(3beta)/(12) (d) none of these

If alpha = cos^(-1)((3)/(5)), beta = tan ^(-1)((1)/(3)) , where 0 lt alpha, beta lt (pi)/(2) , then alpha - beta is equal to (A) tan ^(-1)((9)/( 5sqrt(10))) (B) cos ^(-1)((9)/( 5sqrt(10))) (C) tan^(-1)((9)/(14)) (D) sin ^(-1)((9)/(5 sqrt(10)))

If alpha = cos^(-1)((3)/(5)), beta = tan ^(-1)((1)/(3)) , where 0 lt alpha, beta lt (pi)/(2) , then alpha - beta is equal to (A) tan ^(-1)((9)/( 5sqrt(10))) (B) cos ^(-1)((9)/( 5sqrt(10))) (C) tan^(-1)((9)/(14)) (D) sin ^(-1)((9)/(5 sqrt(10)))

tan alpha=(1)/(7),tan beta=(1)/(3), then cos2 alpha=

If alpha=tan^(-1)(t a n(5pi)/4)a n dbeta=tan^(-1)(-tan(2pi)/3),t h e n 4alpha=3beta (b) 3alpha=4beta (c) alpha-beta=74alpha=(3beta)/(12) none of these