`frac{2}{15}+3frac{4}{15}+5frac{7}{15}`

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

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

frac{1}{sqrt7-4} frac{1}{sqrt11-7}

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

Simplify the following 3frac{1}{7}-{1/6 xx (4div 3frac{1}{2}-7)}

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

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?

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

x frac{dy}{dx} = y - xcos^2 frac{y}{x}

\lim _{x\to 0}(\frac{1}{e^x-1}-\frac{1}{x}\)