((2)/(5)-:(1)/(2)

4(4)/(5)-:{2(1)/(5)-(1)/(2)(1(1)/(4)-(1)/(4)-(1)/(5))}

4(4)/(5)-:{2(1)/(5)-(1)/(2)(1(1)/(4)-(bar((1)/(4)-(1)/(5))))}

On the ellipse 4x^(2)+9y^(2)=1, the points at which the tangents are parallel to the line 8x=9y are ((2)/(5),(1)/(5))( b ) (-(2)/(5),(1)/(5))(-(2)/(5),-(1)/(5))( d) ((2)/(5),-(1)/(5))

2(1)/(5)+3(1)/(2)

Find: 1(2)/(5)+2(1)/(3)

The value of (2)/(5) - (-3)/(5) - (-1)/(2) + (-1)/(2) is

(x^((5)/(2))+2x^(-(1)/(2)))/(x^((5)/(2))-x^(-(1)/(2)))x5/2+2x-1/2 Differentiate 5/2-1/2 with respect to x .

Evaluate 8-8xx(2(1)/(5)-1(2)/(7))/(2-(1)/(6-(1)/(6)))

The sum of the infinite series 1+(1+(1)/(5))((1)/(2))+(1+(1)/(5)+(1)/(5^(2)))((1)/(2^(2)))+