Evaluate :
`Sin^3 alpha / Sin alpha + Cos^3alpha / Cosalpha`

Sum the series: sin alpha - sin 2alpha + sin 3alpha - sin 4alpha + ... to n terms.

Evaluate : (cos^3alpha + sin^3alpha)/(1-sinalphacosalpha)

(sqrt2 - sin alpha - cos alpha )/( sin alpha - cos alpha)=

tan theta = (sin alpha-cos alpha) / (sin alpha + cos alpha)

Evaluate |["cos" alpha, -"sin"alpha], ["sin"alpha, "cos"alpha]|

If x sin ^ (3) alpha + y cos ^ (3) alpha = sin alpha cos alpha and x sin alpha-y cos alpha = 0 then x ^ (2) + y ^ (2) =

If tanalpha=3, calculate : (2 sin 2alpha-3sin2alpha)/(4 sin2alpha+5cos2alpha) .

The value of (sin5 alpha-sin3 alpha)/(cos5 alpha+2cos4 alpha+cos3 alpha) is

The value of (sin5 alpha-sin3 alpha)/(cos5 alpha+2cos4 alpha+cos3 alpha) is