MATLAB中用符号计算验证三角等式 (sin(x))^2+(cos(x))^2=1

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MATLAB中用符号计算验证三角等式 (sin(x))^2+(cos(x))^2=1
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MATLAB中用符号计算验证三角等式 (sin(x))^2+(cos(x))^2=1
MATLAB中用符号计算验证三角等式 (sin(x))^2+(cos(x))^2=1

MATLAB中用符号计算验证三角等式 (sin(x))^2+(cos(x))^2=1
>> syms x
>> y=(sin(x))^2+(cos(x))^2
y =
cos(x)^2 + sin(x)^2
>> simplify(y)
ans =
1