展開する (8.22cos(t)-3.69)^2

解

展開する

(8.22 cos (t) - 3.69)^{2}

67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161

解答ステップ

(8.22 cos (t) - 3.69)^{2}

完全平方式を適用する:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

(8.22 cos (t) - 3.69)^{2} = (8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2}

= (8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2}

簡素化

(8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2} : 67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161

= 67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161