four coplanar forces act at a point, the magnitude of the forces are 25.5N,35.5N,10Nand 42.2N and the directions which the forces act are as shown in the figure below. Given that the resultant of the four forces is in the same direction as the force of magnitude 35.5N. Find, i)the value of ©(teeta) correct to nearest degree and the magnitude of the resultant force​

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step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

236 cm 16 time 12 = 192

6 times 7 = 42

192+42