mathematica的代数化简问题 10
如何将这个式子只带正弦和余弦,不要正割和正切。谢谢~1/2Sec[a](L-(LCos[b]^2Sin[a]^2)/(Cos[a]^2Cos[b]^2+Cos[b]^2S...
如何将这个式子只带正弦和余弦,不要正割和正切。谢谢~
1/2 Sec[
a] (L - (L Cos[b]^2 Sin[a]^2)/(
Cos[a]^2 Cos[b]^2 + Cos[b]^2 Sin[a]^2 + Cos[a]^2 Sin[b]^2) - (
L Cos[a]^2 Sin[a] Sin[b])/(
Cos[a]^2 Cos[b]^2 + Cos[b]^2 Sin[a]^2 +
Cos[a]^2 Sin[
b]^2) + (Sin[
a] \[Sqrt](L^2 Cos[a]^2 Cos[
b]^2 (-Cos[a]^2 - Cos[b]^2 + 4 Cos[a]^2 Cos[b]^2 -
Sin[a]^2 + 4 Cos[b]^2 Sin[a]^2 + 2 Sin[a] Sin[b] -
Sin[b]^2 + 4 Cos[a]^2 Sin[b]^2)))/(Cos[a]^2 Cos[b]^2 +
Cos[b]^2 Sin[a]^2 + Cos[a]^2 Sin[b]^2)) 展开
1/2 Sec[
a] (L - (L Cos[b]^2 Sin[a]^2)/(
Cos[a]^2 Cos[b]^2 + Cos[b]^2 Sin[a]^2 + Cos[a]^2 Sin[b]^2) - (
L Cos[a]^2 Sin[a] Sin[b])/(
Cos[a]^2 Cos[b]^2 + Cos[b]^2 Sin[a]^2 +
Cos[a]^2 Sin[
b]^2) + (Sin[
a] \[Sqrt](L^2 Cos[a]^2 Cos[
b]^2 (-Cos[a]^2 - Cos[b]^2 + 4 Cos[a]^2 Cos[b]^2 -
Sin[a]^2 + 4 Cos[b]^2 Sin[a]^2 + 2 Sin[a] Sin[b] -
Sin[b]^2 + 4 Cos[a]^2 Sin[b]^2)))/(Cos[a]^2 Cos[b]^2 +
Cos[b]^2 Sin[a]^2 + Cos[a]^2 Sin[b]^2)) 展开
1个回答
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