Sum of the square of the length of the chord intersected by the line `x+ y =n , n in N` on circle `x^2+y^2=4` is: (A) 11 (B) 22 (C) 33 (D) none of these

Sum of the square of the length of the chord interseccted by the line x+y=n,n in N on circle x^(2)+y^(2)=4 is: (A)11(B)22(C)33(D) none of these

Find the middle point of the chord intercepted on line lx+my+n=0 by circle x^(2)+y^(2)=a^(2)

Find the length of the chord intercepted by the circle x^(2)+y^(2)-x+3y-22=0 on the line y=x-3

the length of the chord intercepted by the circle x^(2)+y^(2)=r^(2) on the line (x)/(a)+(y)/(b)=1

The sum of the squares of the length of the chords intercepted on the circle x^(2)+y^(2)=16 , by the lines x +y = n , n in N , where N is the set of all natural numbers, is

The number of terms in the expansion of (x+1/x+1)^n is (A) 2n (B) 2n+1 (C) 2n-1 (D) none of these

If the length of the chord of the circle x^2+y^2=4 through (1,1/2) which is of minimum length is d, find d^2 .

If (1+ax)^n = 1 + 8x + 24x^2 + … and a line through (a, n) cuts the circle x^2 + y^2 = 4 in A and B , then PA.PB = . (A) 4 (B) 16 (C) 8 (D) none of these

The locus fo the center of the circles such that the point (2,3) is the midpoint of the chord 5x+2y=16 is (a)x-5y+11=0 (b) 2x+5y-11=0( c) 2x+5y+11=0 (d) none of these

If x+y=15 a n d x y=56 , then what is the value of x^2+y^2? (a) 110 (b) 113 (c) 121 (d) Cannot be determined (e) None of these