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iren [92.7K]
4 years ago
7

Find the real zeros of the trigonometric function on the interval 0 ≤ x < 2π

Mathematics
2 answers:
Luda [366]4 years ago
6 0
4cos2(x)−3=0

or 
4cos2(x)=3

cos(x)= √3/2

π/6, 5π/6,  7π/6,  11π/6



Romashka-Z-Leto [24]4 years ago
5 0
F(x) = 4 [cos (x)]^2 - 3 = 0

4[cos(x)]^2 = 3

cos(x) = √3 / 2

That happens in the first and fourth quadrants, for the angles 30 degrees and 330 degrees.

Answer: x = 30 degrees and x = 330 degrees
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The mass of a sewing needle is 0.585 gram.Round the mass to the nearest hundredth of a gram.
KIM [24]
ANSWER
The mass of the needle to the nearest hundredth of a gram is

0.59grams

EXPLANATION

The mass of the sewing needle is
0.585grams

We want to round the mass of this needle to the nearest hundredth.

This is the same as rounding to two decimal places.

When we count to the right after the decimal point, the second decimal place falls on the 8. Therefore the hundredth digit is 8.

The the next digit after 8 is 5, so we need to round up to get,

0.585 \approx0.59 \: to \: the \: neearest \: hundredth
4 0
3 years ago
A six-sided die is rolled find P (of an even number) don't forget to reduce fraction
velikii [3]

Answer:

P(even no.) = 0.5

Step-by-step explanation:

Using the Formula of Probability = \frac{Required  outcomes}{Total possible outcomes}

Total no. of outcomes when a six sided die is rolled are: 6 (as shown below)

1, 2, 3, 4, 5, 6

Required outcomes are only even number: 3 (as shown below)

2, 4, 6


Thus P(even no.) = \frac{3}{6} = \frac{1}{2} = 0.5


7 0
3 years ago
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