化简 9sin^2(x)+9cos^2(x)

解答

化简

9 sin^{2} (x) + 9 cos^{2} (x)

9

求解步骤

9 sin^{2} (x) + 9 cos^{2} (x)

使用三角恒等式改写

= 9

s im pl i f y \frac{\frac{1}{m - 3}}{\frac{4 m ^{2}}{m ^{2} - 11 m + 24}}

s im pl i f y sec (x) - sec (x) (sin (x))^{2}

s im pl i f y \frac{tan ( x )}{csc ( x )}

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