B) 1 and the square root of 3
Source: http://www.1728.org/trig2.htm
Answer:
The determinant is 15.
Step-by-step explanation:
You need to calculate the determinant of the given matrix.
1. Subtract column 3 multiplied by 3 from column 1 (C1=C1−(3)C3):
2. Subtract column 3 multiplied by 3 from column 2 (C2=C2−(3)C3):
3. Expand along the row 2: (See attached picture).
We get that the answer is 15. The determinant is 15.
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ΔABC ~ ΔFED
, this because
∠A=∠D
∠B=∠E
∠C=∠F
Answer:
17/50
Step-by-step explanation:
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Answer:
9.
Step-by-step explanation:
f(4) = 4 - 7 = -3.
g(f(4)) = g(-3) = (-3)^2
= 9.