" (c) "(1-8x^(2))(1+8x^(2))=......

16x^(2)=8x-1

lim_(x to (1)/(2))lim (4x^(2)+8x-5)/(1-4x^(2))=

Given ^(8)C_(1)x(1-x)^(7)+2.^(8)C_(2)x^(2)(1-x)^(6)+3.^(8)C_(3)x^(3)(1-x)^(5)+......+8.x^(8) = ax+b , Find a+b .

lim_(x to 1/2)((8x-3)/(2x-1)-(4x^(2)+1)/(4x^(2)-1)) .

tan^(-1)((8x)/(1 - 16x^(2)))

underset(x to 1//2)lim {(8x-3)/(2x-1)-(4x^(2)+1)/(4x^(2)-1)}=

The expression (1)/(x-1)-(1)/(x+1)-(2)/(x^(2)+1)-(4)/(x^(4)+1) is equal to (8)/(x^(8)+1)( b) (8)/(x^(8)-1)( c) (8)/(x^(7)-1) (d) (8)/(x^(7)+1)

Lt_(x to oo)((8x-3)/(2x-1)-(4x^(2)+1)/(4x^(2)-1))=

What is (8x)/(1-x^(4)) - (4x)/(x^(2) +1) +(x+1)/(x-1) - (x-1)/(x+1) equal to?

(1)/(sqrt(x^(2)-8x-20))