" (i) "(7)/(4)

If the 4 points made by intersection of lines 2x-y+1=0,x-2y+3=0 with the coordinate axes are concyclic then centre of circle is (A) ((7)/(4),(5)/(4))(B)((7)/(4),(-5)/(4))(C)((-7)/(4),(5)/(4))(D)((-7)/(4),(-5)/(4))

Represent (-1)/(4),(7)/(4),(-7)/(4) on the number line.

Draw a number line and mark (3)/(4), (7)/(4),(-3)/(4) "and" (-7)/(4) on it.

Find the value : (7!)/(4!)

A rational number equivalent to (-7)/(-4) is

[((-4)/(7))+(1)/(4)]+([7]/[-16])-([-4]/[7])+[(1)/(4)+((7)/(-16))]

Simplify and give reasons ((4)/(7))^(-5)times((7)/(4))^(-7)

Find: 4(3)/(7)-2(4)/(7)

Find the sum of each of the following infinite geometric series, if it exists : (4)/(7) - (5)/(7^(2)) + (4)/(7^(3)) - (5)/(7^(4)) + (4)/(7^(5)) - (5)/(7^(6)) +…oo

intcos^(-3/7)xsin^(-11/7)xdx= ...... A) (-7/4)tan^(-4/7)x+c B) log(sin^(-4/7)x)+c C) (4/7)tan^(4/7)x+c D) log(cos^(3/7)x)+c