化简 (2sin^2(x))/(sin^2(x)+2cos^2(x))

解答

化简

\frac{2 sin ^{2} ( x )}{sin ^{2} ( x ) + 2 cos ^{2} ( x )}

\frac{2 sin ^{2} ( x )}{- sin ^{2} ( x ) + 2}

求解步骤

\frac{2 sin ^{2} ( x )}{sin ^{2} ( x ) + 2 cos ^{2} ( x )}

化简

sin^{2} (x) + 2 cos^{2} (x) : - sin^{2} (x) + 2

= \frac{2 sin ^{2} ( x )}{- sin ^{2} ( x ) + 2}

f a c t or 3 n + 3

7 \times (- 3) + (- 2) \times (- 13)

s im pl i f y (\frac{x}{y} + \frac{y}{2} + \frac{z}{x})^{2}

s im pl i f y ((\frac{a}{b})^{- 2})^{\frac{3}{4}}

s im pl i f y csc^{2} (x) sin^{2} (x) + cot^{2} (x) - csc^{2} (x)