Question

急死了sin^2阿鲁法(1-sin^2贝塔)=(1-sin^2阿鲁法)(1+sin^2贝塔) 怎样能化解成sin^2贝塔

Answer 1

你先把公式里的括号拆开：sin^2阿鲁法(1-sin^2贝塔)=(1-sin^2阿鲁法)(1+sin^2贝塔) 就变成了

sin^2阿鲁法-sin^2阿鲁法*sin^2贝塔=1+sin^2贝塔-sin^2阿鲁法-sin^2阿鲁法sin^2贝塔

再把公式两边的相同量消去,就变成了sin^2贝塔=2sin^2阿鲁法-1