Questions asked by suhaib A.

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• 4. If the cosecant of a fourth quadrant angle is –π/e, what is its cosine? Thanks
  
• Inscribe an equilateral triangle inside a circle of radius 5 cm and calculate the area outside the triangle and inside the circle?
  
• Four wheels of different radii are connected with pulleys as shown below. Wheels #2 and #1 have a common axle. If the angular velocity of Wheel #2# is #2# revolutions per second, what is the angular velocity of Wheel #4#?
  
• The picture has the question. the degree should be converted to radians and plug it into calculator to apply sinreg. how can I covert those degrees to radians?
  
• In the figure below, calculate the lengths and angles of all pieces. Note: ABC is parallel to EH and FG, and the length of AB is π/5.?
  
• Four wheels of different radii are connected with pulleys as shown below. Wheels 2 and 3 have a common axle. If the angular velocity of Wheel 2 is 2 revolutions per second, what is the angular velocity of Wheel 4?
  
• Surveying: in the surveying map shown below, calculate the distance and direction from point E to point A and estimate the enclosed area?
  
• Determine the length AB in the figure below without using Cosine and Sine formulas?
  
• Using the original experiment by the Greek scientist Eratosthenes. Write about how you could determine the circumference of the earth using only 2 points on the surface and any day of the year?
  
• 4. Equation or Identity? Is the following relationship an equation or an identity? If an equation, solve it. If an identity, prove it. #(secx-tanx)^2 = (1-sinx)/(1+sinx)#
  
• In the binomial expansion of (x/3 – 4/y)7, what is the coefficient of the term (x/y)4?