Find the sum of `frac{4}{3}+frac{3}{4}`

If f(x)=x^3-frac{1}{x^(3)} find the value of f(x)+f(frac{1}{x})

cos frac{3pi}{4}-iota sin frac{3pi}{4}

solve the equations: frac{2}{sqrt x} + frac{3}{sqrt y} =2 and frac{4}{sqrt x} - frac{9}{sqrt y} =-1

Prove that Cos frac{pi}{5} + Cos frac{2pi}{5} + Cos frac{6pi}{5} + Cos frac{7pi}{5} = 0

Find the sum: 4/(15)+3/(20)

3frac{1}{13}+1frac{4}{13}+2frac{3}{13}

dy/dx = cos frac{x}{2} / 2

If the range of the function f(x)= 3x^2+bx+c is [0,oo) then value of frac{b^2}{3c} is

frac{dP}{dx} = frac{d}{dx} (x^3) (frac{7-2x}{3})^(4)

Sameera purchased 3 frac{1}{2} kg apples and 4 frac {3}{4} kg oranges. What is the total weight of fruits purchased by her?