For Exercises 72-73, use a graphing calculator and the inverse of the coefficient matrix to find the solution to the given system. Round to 2 decimal places. 11 x + y − ln 5 z = 52.3 7 x − π y + e 3 z = − 27.5 − x + log 81 y − z = 69.8
For Exercises 72-73, use a graphing calculator and the inverse of the coefficient matrix to find the solution to the given system. Round to 2 decimal places. 11 x + y − ln 5 z = 52.3 7 x − π y + e 3 z = − 27.5 − x + log 81 y − z = 69.8
Solution Summary: The author calculates the solution to the system of equations using graphing calculator.
For Exercises 72-73, use a graphing calculator and the inverse of the coefficient matrix to find the solution to the given system. Round to
2
decimal places.
11
x
+
y
−
ln
5
z
=
52.3
7
x
−
π
y
+
e
3
z
=
−
27.5
−
x
+
log
81
y
−
z
=
69.8
Use Excel to solve for the unknowns. Set your Excel up to the 10th decimal place. No need for manual rounding off. Just copy the answer from your excel template up to the required number of decimal place. Stop your iteration if f(x)=0 or current and previous values of the unknown does not change.
Please solve this question in handwriting. Again please need it in handwriting.
a. Determine the solutions of the simultaneous equations given below
y = x² + x + 1
y = 6x + 7
b. Solve the following inequality:
|3x + 1| <3
c. Solve the following equation using logarithm, correct to 3 significant figures.
33t-1 = 7t+1
3
d. Simplify the matrix multiplication
2 -1
-4
7 31
e. Find the inverse matrix of Matrix A =
=[-_-2-3]
6
5
f. Find the determinant of the Matrix B= 2
-2
-4
NÁG
5
2
-2
ܢܐ ܗ ܚ
6
-3
1
0
3 -3
X
م بل ه
-3
0
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