巨大IT企業がリードするグローバル社会において、数学はその産業の基盤となり、いまや欠くことのできない教養となっています。 「育ってきた環境・文化・常識が違う人が世界中から集まる場においては、数字を根拠に物事の全体像を俯瞰して判断し ...

Trigonometry is the branch of mathematics that explains the relationship between sides and angles of a triangle. In a right angled triangle the three sides are perpendicular, base and hypotenuse, as ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the ...

This version is used to calculate lengths. Calculate the length BC. Give the answer to three significant figures. Use the form \(a^2 = b^2 + c^2 - 2bc \cos{A}\) to calculate the length. \(\text{BC}^2 ...