xy
xy
xy
(xy)-1
Correct answer is C
Simplify (1x−1+1y−1)-1 = (1x−1+1y−1)-1
= (x + y)-1 = (x)y
= xy
The angle of a sector of a circle is 108°. If the radius of the circle is 31/2cm, find the perim...
Express 0.000834 in standard form ...
The sum of the interior angles of regular polygon is 1800o. How many sides has the polygon?...
At what rate would a sum of N100.00 deposited for 5 years raise an interest of N7.50? ...
In the diagram above, O is the centre of a circle NST. |NT| = |ST| and ∠NTS = 36°. Find the ...
The graph of y = ax2+bx+c is shown oon the diagram. Find the minimum value of y...
Find the value of k if y - 1 is a factor of y3 + 4y2 + ky - 6...