angle addition formulas造句

例句与造句

1. You'll still need an angle addition formula, though . talk ) 13 : 01, 10 February 2013 ( UTC)
2. The lhs can then be evaluated using the tangent angle addition formula; you should get \ frac { m + n } { 1-mn } after canceling tans with arctans.
3. It's difficult to find angle addition formulas in a sentence. 用angle addition formulas造句挺难的