If `x/(2y)=6/7` , the value of `(x-y)/(x+y)+(14)/(19)` is(a) `(13)/(19)` (b) `(15)/(19)` (c) `1` (d) `1 1/(19)`

What is the value of ((5)/(7) of (19)/(6))/((19)/(7)/((7)/(4)))

sqrt((0.361)/(0.00169))=?(1.9)/(13) (b) (19)/(13)(c)(1.9)/(130) (d) (190)/(13)

Solve (x)/(6)+(y)/(15)=4 , (x)/(3)-(y)/(12)=(19)/(4)

If (1)/(3)+(1)/(2)+(1)/(x)=4, then x=?(5)/(18)(b)(6)/(19) (c) (18)/(5)(d)(24)/(11)

The value of cos((pi)/(19))+cos((3 pi)/(19))+cos((5 pi)/(19))++cos((17 pi)/(19)) is (a) (1)/(2)(b)0(c)1 (d)none

{:((x)/(3) + (y)/(15) = 4),((x)/(3) - (y)/(12) = (19)/(4)):}

{(1/3)^(-3)-(1/2)^(-3)}-:(1/4)^(-3) = (19)/(64) (b) (64)/(19) (27)/(16) (d) (-19)/(64)

x,y,z be a point on plane passing through (42,0,0),(0,42,0),(0,0,42) then value of (x-11)/((y-19)^2* (z-12)^2 )+(y-19)/((x-11)^2* (z-12)^2) +(z-12)/((x-11)^2* (y-19)^2)+3 -(x+y+z)/(14(x-11)* (z-12)*(y-19) )

(19)^(12)xx(19)^(8)-:(19)^(4)=(19)^(?)6b.8c.12d24