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Readme [11.4K]
4 years ago
6

Find all solutions to the equation: cos x = sin x

Mathematics
2 answers:
bagirrra123 [75]4 years ago
8 0
Cosx=sinx
sin(pi/2-x)=sinx
pi/2-x=x
pi/2=x+x
pi/2=2x
x=pi/4
45 degrees
hope it helps

quester [9]4 years ago
7 0
Divide both sides by cos[x] 

<span>You get 1 = Tan[x] </span>

<span>Tan[x] = 1 where x = 45 degrees {+ integer multiples of 180 degrees due to periodicity of tan} </span>

<span>x = 45 + 180*k OR Pi/4 + kPi, for k any integer</span>
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Choose the equation that best represents the equation of the graph of f(x) = 3^x +4.
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3 years ago
My metric bolt measures .780 with calipers over the threads what size is it
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Bolts are usually classified in terms of two types of measurements: the metric system and the imperial system. In calipers, the metric system is in units of millimeters, while the imperial system is in units of inches. For example, when a bolt is sized as 12 × 1.25 in the metric system, that means the bolt thread diameter measures 12 mm, and the thread pitch measures 1.25 mm.

So, if your metric bolt measures 0.78 over the threads, that means that the size of the bolt is 0.78 mm in thread pitch. The attached picture shows how you measure the thread pitch. 

5 0
3 years ago
This one is algebra.....
vodomira [7]

{Hello~!\:}

<h2>Your answer will be is :</h2><h2></h2><h3>B. And C.</h3><h3></h3>

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#LearnWithBrainly

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7 0
3 years ago
According to the Fundamental Theorem of Algebra, the graph of f(x) = x2 - 4x + 3, has roots. From the graph we can see that it h
andreyandreev [35.5K]

Answer:

The graph f(x)=x^2-4x+3  has two zeros namely 3 and 1.

Step-by-step explanation:

Consider the given equation of graph f(x)=x^2-4x+3

According to the Fundamental Theorem of Algebra

For a given polynomial of degree n can have a maximum of n roots.

Thus, for the given equation f(x)=x^2-4x+3  the degree of polynomial is 2 , thus the function can have maximum of 2 roots.

We know at roots the value of function is 0 that is f(x) = 0,

Substitute f(x) = 0 , we get, f(x)=x^2-4x+3=0

This is a quadratic equation, x^2-4x+3=0

We first solve it manually and then check by plotting graph.

Quadratic equation can be solved using middle term splitting method,

here, -4x can be written as -x-3x,

x^2-4x+3=0 \Rightarrow x^2-x-3x+3=0

\Rightarrow x(x-1)-3(x-1)=0

\Rightarrow (x-3)(x-1)=0

Using zero product property, a\cdot b=0 \Rightarrow a=0\ or \ b=0

\Rightarrow (x-3)=0 or \Rightarrow (x-1)=0

\Rightarrow x=3 or \Rightarrow x=1

Thus, the two zero of f(x) are 3 and 1.

We can also see on graph attached below that the graph f(x)=x^2-4x+3  has two zeros  namely 3 and 1.  

3 0
3 years ago
After retirement from the service a man received some amount from his provident fund. He gave two-fifth of the amount to his son
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Answer:

F

Step-by-step explanation:

Ghstgnmootfwr

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