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Find Sin 2 (30degrees)

Vinvika [58]

Answer:

Sin 2 (30)°= $\frac{\sqrt{3} }{2}$

Step-by-step explanation:

Explanation:-

Given that Sin 2 (30)°

we know that the formula sin2θ = 2sinθ cosθ

Given that θ = 30°

Now

sin2(30)° = 2sin30° cos30°

$= 2 ( \frac{1}{2} X \frac{\sqrt{3} }{2} )$

After cancellation, we get

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

Final answer:-

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

5 0

3 years ago

Here goes my 3 question

Anastaziya [24]

It's a because the form for being proportional is
ab=k
or
a/b=k
4/6=k
4 times 6=k

then 5 times 7=k
false so

so there is no ratio so the answer is A

3 0

4 years ago

A rectangular shoebox has a volume of 85 cubic inches. The base of the shoebox measures 2 inches by 2.5 inches. How long is the

Kisachek [45]

728 ÷ 8 = 91 ÷ 6.5 = 14Okay to solve this you need to divide the volume to the two measurements

728 ÷ 8 = 91 ÷ 6.5 = 14

728 ÷ 8 = 91 ÷ 6.5 = 14Okay to solve this you need to divide the volume to the two measurements

728 ÷ 8 = 91 ÷ 6.5 = 14Okay to solve this you need to divide the volume to the two mea

728 ÷ 8 = 91 ÷ 6.5 = 14Okay to solve this you need to divide the volume to the two measurements

vide the volume to the two measurements

728 ÷ 8 = 91 ÷ 6.5 = 14Okay to solve this you need to divide the volume to the two measurements

728 ÷ 8 = 91 ÷ 6.5 = 14

5 0

3 years ago

Each graph shows a relation. The first and second numbers of each ordered pair in the relation are members of the set of real nu

Goshia [24]

Using it's concepts, we have that:

The domain of the relation is of -2 ≤ x ≤ -1.

The range of the relation is of -2 ≤ y ≤ 2.

Since each value of the input is mapped to only one value of y, it is a function.

<h3>What are the domain and the range of a relation?</h3>

The domain of a relation is the set that contains all possible input values for the relation. In a graph, it is given by the values of x.

The range of a relation is the set that contains all possible output values for the relation. In a graph, it is given by the values of y.

Hence:

The domain of the relation is of -2 ≤ x ≤ -1.

The range of the relation is of -2 ≤ y ≤ 2.

<h3>When does a relation represents a function?</h3>

A relation represents a function when each value of the input is mapped to only one value of the output.

From this graph, we have that each value of x is mapped to only one value of y, that is, there are no vertically aligned points, hence the relation is a function.

More can be learned about relations and functions at brainly.com/question/12463448

#SPJ1

4 0

2 years ago

You deposit $70 in a savings account that pays an annual interest rate of 30%. How much simple interest would you earn in 2.5 ye

blagie [28]

The formula is
I=prt
I interest earned?
P principle 70
R interest rate 0.3
T time 2.5 years
I=70×0.3×2.5
I=52.5

4 0

4 years ago