Arctangent - math problems

Number of problems found: 45

  • Modulus and argument
    complex_numbers Find the mod z and argument z if z=i
  • Bevel
    zkoseni I have bevel in the ratio 1:6. What is the angle and how do I calculate it?
  • Climb
    scenic_road Road has climbing 1:27. How big is a angle corresponds to this climbing?
  • Descent of road
    znacka_klesanie Road sign informs the gradient is 10.9%. Calculate the angle which average decreases.
  • The angle of lines
    lines Calculate the angle of two lines y=x-21 and y=-2x+14
  • Railway
    train Railway line had on 5.8 km segment climb 9 permille. How many meters track ascent?
  • Hole's angles
    Trapezium2-300x199 I am trying to find an angle. The top of the hole is .625” and the bottom of the hole is .532”. The hole depth is .250” what is the angle of the hole (and what is the formula)?
  • Height difference
    road What height difference overcome if we pass road 1 km long with a pitch21 per mille?
  • Goniometric form
    complex_fnc Determine the goniometric form of a complex number z = √ 110 +4 i.
  • Angle between lines
    angle_two_lines Calculate the angle between these two lines: p: -8x +4y +5 =0 q: 10x +10y -7=0
  • Angle
    atan A straight line p given by the equation ?. Calculate the size of angle in degrees between line p and y-axis.
  • Road drop
    atan On a straight stretch of road is marked 12 percent drop. What angle makes the direction of the road with the horizontal plane?
  • Road
    cesta Between cities A and B is route 13 km long of stúpanie average 7‰. Calculate the height difference of cities A and B.
  • Tangents to ellipse
    ellipseTangent Find the magnitude of the angle at which the ellipse x2 + 5 y2 = 5 is visible from the point P[5, 1].
  • Road
    route-66 The average climb of the road is given by ratio 1:15. By what angle road average climb?
  • Coordinates of square vertices
    rotate_square I have coordinates of square vertices A / -3; 1/and B/1; 4 /. Find coordinates of vertices C and D, C 'and D'. Thanks Peter.
  • Ratio iso triangle
    iso_triangle The ratio of the sides of an isosceles triangle is 7:6:7 Find the base angle to the nearest answer correct to 3 significant figure.
  • 3 phase load
    3phasesPower Two wattmeters are connected to measuring power in a 3 phase balanced load. Determine the total power and power factor if the two wattmeters read 1000 watts each (1) both positive and (2) second reading is negative.
  • Three pillars
    3poles On a straight road, three pillars are 6 m high at the same distance of 10 m. At what angle of view does Vlado see each pillar if it is 30 m from the first and his eyes are at 1.8 m high?
  • Traffic sign
    cyklo2 There is a traffic sign for climbing on the road with an angle of 7%. Calculate at what angle the road rises (falls).

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