化简[sin눀(α+π)cos(α+π)]⼀tan(α+π)cos대(-α-π)tan(-α-2π)

化简sin눀(α+π)cos(α+π)/tan(α+π)cos대(-α-π)tan(-α-2π)
2025-02-26 18:01:53
推荐回答(2个)
回答1:

sin²(α+π)cos(α+π)/tan(α+π)cos³(-α-π)tan(-α-2π)
=sin²αcosα/tanα(-cos³α)(-tanα)
=1.

回答2:

=1