2018年3月2日 · The answer is (π 12)c = 15∘. For Conversion of radians to degrees, use the formula. D = (R π) ⋅ 180 as πc = 180∘. D = (π 12) ⋅ 180 π = 18015 12 = 15∘. If you take π 12 …

π = 3.141 592 653 589。 圆周率用希腊字母π（读作pài）表示，是一个数学及物理学中普遍存在的常数（约等于3.141592654），是代表圆周长和直径的比值。 π也等于圆形之面积与半径平 …

2016年4月11日 · How do you find the exact value of sin(π 12)? We want to find replacement angles for π 12 that will produce exact values. These must come from : π 6, π 3, π 4. ⇒ sin(π …

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.

π/12 radian equals 15°. Use our 'radians to degrees converter' to find the value of π/12 radian in degrees or the value of any other angle with solution steps.

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, …

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, …

2015年10月17日 · Since the arc (pi/12) is in Quadrant I, its cos is positive. Therefor, #cos (pi/12) = cos a = sqrt(2 + sqrt3)/2# #sec (pi/12) = 1/(cos a) = 2/sqrt(2 + sqrt3)#. Check by calculator: …