Do five iterative steps using Jacobi iteration starting from x0 = [1 1 1] and calculate convergence criteria. Show all steps. a. 3x1 − 2x2 = 1
−2x1 + 9x2 + 2x3 = −30
−x2 + 8x3 = 60

b. 3x1+ 2x2+ x3 =7
x1+ 3x2+ 2x3= 4
2x1+ x2+ 3x3= 7

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

step-by-step explanation:

not sure but it may be b, as i said i'm not sure.