tanx泰勒展开式疑惑
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发布时间:2022-04-22 00:33
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热心网友
时间:2023-06-13 17:51
灞曞紑鍏ㄩ儴f(x)=tanx =>f(0) =0
f'(x) =(secx)^2 =>f'(0)/1! =1
f''(x) =2(secx)^2.tanx =>f''(0)/2! =0
f'''(x) =2[ 2(secx.tanx)^2 + (secx)^3 ] =>f'''(0)/3! =1/3
=>
tanx = x+(1/3)x^3+....杩介棶鎴戠煡閬撲簡锛屾垜绠楃殑鏄痑rctanx...
热心网友
时间:2023-06-13 17:51
灞曞紑鍏ㄩ儴閰嶉煶瀵兼紨鍒樻槑鐝?