- $$\sin^{-1}0.4+\cos^{-1}0.4=?$$
- $$\tan^{-1}\frac{1}{3}+\tan^{-1}\frac{1}{2}=?$$
- $$\tan^{-1}1+\tan^{-1}2+\tan^{-1}3=?$$
“I never teach my pupils; I only attempt to provide the conditions in which they can learn.” ~ ALBERT EINSTEIN
Showing posts with label 反三角函数. Show all posts
Showing posts with label 反三角函数. Show all posts
Tuesday, January 18, 2011
理科高数系列: 反三角函数 3
反三角函数求角题型,注意范围。
理科高数系列: 反三角函数 2
反三角函数的抵消条件题型。
- $$\sin^{-1}\left(\sin\frac{5\pi}{6}\right)=?$$
- $$\cos^{-1}\left(\cos\frac{4\pi}{3}\right)=?$$
- $$\sin^{-1}\left(\sin\frac{2\pi}{3}\right)+\tan^{-1}\left(\tan\frac{3\pi}{5}\right)=?$$
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
- $$\sin\left(\cos^{-1}\frac{2}{\sqrt5}+\sin^{-1}\frac{1}{\sqrt{10}}\right)=?$$
- $$\tan\left[\cos^{-1}\left(\frac{4}{5}\right)+\sin^{-1}\left(-\frac{3}{5}\right)\right]=?$$
- $$\cos\left[\cos^{-1}\left(\frac{4}{5}\right)+\cos^{-1}\left(-\frac{5}{13}\right)\right]=?$$
- $$\sin\left[\tan^{-1}5+\csc(-3)\right]=?$$
- $$\sin\left[2\tan^{-1}\left(-\frac{3}{4}\right)\right]=?$$
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