Cosine - math problems
Number of problems found: 154
- Cosine
Calculate the cosine of the smallest internal angle in a right-angled triangle with cathetus 3 and 8 and with the hypotenuse 8.544. - Cosine
The point (3, 4) is on the terminal side of angle θ. cos θ = ? - Angles by cosine law
Calculate the size of the angles of the triangle ABC, if it is given by: a = 3 cm; b = 5 cm; c = 7 cm (use the sine and cosine theorem). - Sin cos tan
In triangle ABC, right-angled at B. Sides/AB/=7cm, /BC/=5cm, /AC/=8.6cm. Find to two decimal places. A. Sine C B. Cosine C C. Tangent C. - Cuboids
Two separate cuboids with different orientation in space. Determine the angle between them, knowing the direction cosine matrix for each separate cuboid. u1=(0.62955056, 0.094432584, 0.77119944) u2=(0.14484653, 0.9208101, 0.36211633) - Right triangle trigonometrics
Calculate the size of the remaining sides and angles of a right triangle ABC if it is given: b = 10 cm; c = 20 cm; angle alpha = 60° and the angle beta = 30° (use the Pythagorean theorem and functions sine, cosine, tangent, cotangent) - Scalene triangle
Solve the triangle: A = 50°, b = 13, c = 6 - Q-Exam
If tg α = 9.6, Calculating sin α, cos α, cotg α . - Cotangent
If the angle α is acute, and cotan α = 1/3. Determine the value of sin α, cos α, tg α. - Side c
In △ABC a=2, b=4 and ∠C=100°. Calculate length of the side c. - Earth's circumference
Calculate the Earth's circumference of the parallel 48 degrees and 10 minutes. - Trigonometry
If you know that cos(γ) = sin (806°), what is the angle γ? - Trigonometric functions
In the right triangle is: ? Find the value of s and c: ? ? - Pentagon
Calculate the area of a regular pentagon, which diagonal is u=16. - Right
Determine angles of the right triangle with the hypotenuse c and legs a, b, if: ? - One side
One side is 36 long with a 15° incline. What is the height at the end of that side? - Substitution method
Solve goniometric equation: sin4 θ - 1/cos2 θ=cos2 θ - 2 - Road
The angle of a straight road is approximately 12 degrees. Determine the percentage of this road. - Earth parallel
Earth's radius is 6370 km long. Calculate the length parallel of latitude 50°. - ABCD
AC= 40cm , angle DAB=38 , angle DCB=58 , angle DBC=90 , DB is perpendicular on AC , find BD and AD
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