登录 注册

P71135 Weight:1 3) Simplify: 3cos? x + cos x - 2 1 - cosx a) O 3cos x - 2 1 + COS X b) 3cos x + 2 1 + OS X c) O 3cos x + 2 1 - cos x d) 3cos x - 2 1 - cOS X P71140 Weight:1 4) Simplify: 5 cos4 x - 5 sin4 x and write in terms of cos x a) s(cos? x + 2) b) O

匿名用户 最后更新于 2021-12-01 19:17 数学类Mathematics

P71135 Weight:1 3) Simplify: 3cos? x + cos x - 2 1 - cosx a) O 3cos x - 2 1 + COS X b) 3cos x + 2 1 + OS X c) O 3cos x + 2 1 - cos x d) 3cos x - 2 1 - cOS X P71140 Weight:1 4) Simplify: 5 cos4 x - 5 sin4 x and write in terms of cos x a) s(cos? x + 2) b) O 5(cos? x 2) c) O 5(2cos? x - 1) d) O 5(2cos? * 1) +

没有找到相关结果

    已邀请:

    1 回答

    登录查看答案