The value of `(5/7\ of\ 1 6/(13))-:(2 5/7-:3 1/4)` is (a) `(20)/(169)` (b) `1` (c) `5/4` (d) `1(119)/(180)`

Find the value of ( ( 1/3 )^(-2) + ( 1/4 )^(-2) ) ÷ ( 1/5 )^(-2) ( a ) 0 ( b ) -1 ( c ) 1 ( d ) 7/5

If (x)/(y)=(6)/(5), then the value of ((6)/(7)-(5x-y)/(5x+y)) is equal to (a) (1)/(7)( b) (2)/(7)(c)(3)/(7) (d) (4)/(7)

The value of tan[cos^(-1)(4/5)+tan^(-1)(2/3)] is 6/(17) (b) 7/(16) (c) (16)/7 (d) none of these

The value of tan[cos^(-1)(4/5)+tan^(-1)(2/3)] is 6/(17) (b) 7/(16) (c) (16)/7 (d) none of these

The value of tan[cos^(-1)((4)/(5))+tan^(-1)((2)/(3))] is (6)/(17) (b) (7)/(16) (c) (16)/(7) (d) none of these

The value of tan[cos^(-1)(4/5)+tan^(-1)(2/3)] is 6/(17) (b) 7/(16) (c) (16)/7 (d) none of these

(1)/(1.23)+(1)/(2.3.4)+(1)/(3.4.5)+(1)/(4.5.6)= a) (7)/(30) b) (11)/(30) c) (13)/(30) d (17)/(30)

The value of 6((1)/(5)) - [4((1)/(2)) - {""((1)/(6)) - (""((3)/(5)) + ""((3)/(10)) - ""((7)/(15)))}] is

The sum of the infinite series is (1)/(1.3)+(1)/(3.5)+(1)/(5.7)+...oo(A)(1)/(7)(B)(1)/(3)(C)(1)/(5) (D) (1)/(2)

(6)/(5-(5)/(3))+(4-(2)/(4-(1)/(2)))/(5-(3)/(2))-(2)/(5) of {(6)/(9)+(2)/(3) of (1)/(2)}=?( a) 1(1)/(3)( b) 2(13)/(49) (c) 1(7)/(16) (d) (3)/(5)