计算sin²35°-tan35°×cos35°+cos²35°
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计算sin²35°-tan35°×cos35°+cos²35°
计算sin²35°-tan35°×cos35°+cos²35°
计算sin²35°-tan35°×cos35°+cos²35°
sin²35°-tan35°×cos35°+cos²35°
=sin²35°+cos²35°-tan35°×cos35°
=1-sin35°/cos35°×cos35°
=1-sin35°
1-sin35°