Friday, January 14, 2011

理科高数系列: 反三角函数 1

基本反三角函数观念解说及例题示范

  1. $$\sin\left(\cos^{-1}\frac{2}{\sqrt5}+\sin^{-1}\frac{1}{\sqrt{10}}\right)=?$$
  2. $$\tan\left[\cos^{-1}\left(\frac{4}{5}\right)+\sin^{-1}\left(-\frac{3}{5}\right)\right]=?$$
  3. $$\cos\left[\cos^{-1}\left(\frac{4}{5}\right)+\cos^{-1}\left(-\frac{5}{13}\right)\right]=?$$
  4. $$\sin\left[\tan^{-1}5+\csc(-3)\right]=?$$
  5. $$\sin\left[2\tan^{-1}\left(-\frac{3}{4}\right)\right]=?$$


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