Arctangent - math problems
Number of problems found: 45
- Modulus and argument
Find the mod z and argument z if z=i
I have bevel in the ratio 1:6. What is the angle and how do I calculate it?
Road has climbing 1:27. How big is a angle corresponds to this climbing?
- Descent of road
Road sign informs the gradient is 10.9%. Calculate the angle which average decreases.
- The angle of lines
Calculate the angle of two lines y=x-21 and y=-2x+14
Railway line had on 5.8 km segment climb 9 permille. How many meters track ascent?
- Hole's angles
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
What height difference overcome if we pass road 1 km long with a pitch21 per mille?
- Goniometric form
Determine the goniometric form of a complex number z = √ 110 +4 i.
- Angle between lines
Calculate the angle between these two lines: p: -8x +4y +5 =0 q: 10x +10y -7=0
A straight line p given by the equation ?. Calculate the size of angle in degrees between line p and y-axis.
- Road drop
On a straight stretch of road is marked 12 percent drop. What angle makes the direction of the road with the horizontal plane?
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
Find the magnitude of the angle at which the ellipse x2 + 5 y2 = 5 is visible from the point P[5, 1].
The average climb of the road is given by ratio 1:15. By what angle road average climb?
- Coordinates of square vertices
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
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
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
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
There is a traffic sign for climbing on the road with an angle of 7%. Calculate at what angle the road rises (falls).