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Math

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PROBLEM

Question 25 (1 point)
Which of the following radian measures is the largest?
a) 12π9\frac{12 \pi}{9}
b) None of the above
C) 3π2\frac{3 \pi}{2}
d) 7π4\frac{7 \pi}{4}

STEP 1

1. We are comparing radian measures to determine which is the largest.
2. The options provided are in terms of π\pi, which is a common unit in trigonometry.
3. We will compare the numerical values of the given radian measures.

STEP 2

1. Simplify each radian measure.
2. Compare the simplified radian measures.
3. Determine the largest radian measure.

STEP 3

Simplify each radian measure:
a) 12π9\frac{12 \pi}{9} simplifies to 4π3\frac{4 \pi}{3} by dividing the numerator and the denominator by 3.
b) "None of the above" is not a radian measure and will be considered only if no other option is larger.
c) 3π2\frac{3 \pi}{2} is already in its simplest form.
d) 7π4\frac{7 \pi}{4} is already in its simplest form.

STEP 4

Compare the simplified radian measures:
- 4π3\frac{4 \pi}{3} is approximately 4.188794.18879 (using π3.14159\pi \approx 3.14159).
- 3π2\frac{3 \pi}{2} is approximately 4.712394.71239.
- 7π4\frac{7 \pi}{4} is approximately 5.497795.49779.

SOLUTION

Determine the largest radian measure:
- Comparing the values, 7π4\frac{7 \pi}{4} is the largest.
The largest radian measure is option d) 7π4\frac{7 \pi}{4}.
The answer is d\boxed{d}.

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