Consider the following system of nonlinear equations (assume 0< θ1, θ2 <90)

Cos(θ1)+ 2Cos(θ2)= 1.2975
Sin(θ1)+ 2Sn(θ2)=2.2429

a. Solve for θ1 and θ2 by hand (Using the trigonometric identity sin^2(θ) + Cos^2(θ)=1)
b. Solve for θ1 and θ2 using MATLAB.

step-by-step explanation:

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if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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step-by-step explanation: