化简求值:(√(1-2sin10°cos10°)/(sin10°-√(1-sin170°))
问题描述:
化简求值:(√(1-2sin10°cos10°)/(sin10°-√(1-sin170°))
答
(√(1-2sin10°cos10°)/(sin10°-√(1-sin170°))=(√(1-sin20°))/(sin10°-cos10°)=√[(1-sin20°)/(sin10°-cos10°)]=1