MIDDLE TERM:
Show that middle term of the expansion of (1 X)^2n is 1.3.5....…....(2n-1)/n!×2^n.x^n.,where n is a positive integer.
Find the Radius of the circle whose centre is(3,2) and passes through (-5,6).
Find the remainder, if the polynomial x⁴+x³ -3x²+3x+1 is divided by 3+2x