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NemiM [27]
3 years ago
7

If tan=3 by 4 find the value tan+sec​

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

As given that ,

tan(Ф)=3/4

Now to find sect(Ф)

we know that,

1+tan^{2}(Ф)=sec^{2}(Ф)

putt values we get ,

sec^{2}(Ф)=1+(3/4)^2

sec^{2}(Ф)=1+9/16

sec^{2}(Ф)=25/16    

sec(Ф)=  +5/4    and sec(Ф)=-5/4      as quadrant is not mentioned so will take both positive and negative values

hence we get ,

tan(Ф)+sec(Ф)=3/4+5/4 = 8/4 = 2

also for sec(Ф)= -5/4

tan(Ф)+sec(Ф)= 3/4-5/4 = -2/4 = -1/2

iragen [17]3 years ago
6 0

Answer:

Step-by-step explanation:

tan A=3/4

Sec^2 A= 1+tan^2

A= 1+(3/4)^2=1+9/16=25/16.

Sec A=(25/16)^0.5= +/-5/4

+/-5/4 this is the answer.

Hope this helps

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a student walks 8 steps east 6 steps northeast 9 steps north west what is her displacement? include magnitude and direction
kati45 [8]

The displacement is 18.03 steps, and the direction is 47.25°

<h3>How to get the displacement?</h3>

We know that displacement is the difference between the final position and the initial position.

We assume the initial position (0, 0). Let's define the positive x-axis as the east and the positive y-axis as the north.

First, the student moves 8 steps east, so she is at:

(0 + 8, 0)

Then she moves 6 steps northeast, so the new position is:

(6*cos(45°) + 8,  6*cos(45°))

Finally, she moves 9 steps due north, so we have:

(6*cos(45°) + 8,  6*cos(45°) + 9)

Then the final position is:

(12.24, 13.24)

So the displacement is:

D = (12.24, 13.24) - (0, 0) =  (12.24, 13.24)

The magnitude of the displacement is:

|D| = \sqrt{12.24^2 + 13.24^2} = 18.03

So the magnitude is 18.03 steps.

And the direction is given by the arctangent of the quotient between the y-component and the x-component:

\theta = Arctg(13.24/12.24) = 47.25 \°

If you want to learn more about displacements:

brainly.com/question/4931057

#SPJ1

8 0
2 years ago
First, rewrite 14/25 and 11/20 so that they have a common denominator. Then, use &lt;, =, &gt;
muminat

Answer: 14/25 = 56/100

               11/20 =  55/100

               14/25 > 11/20

Step-by-step explanation:

The least common multiple of 20 and 25 is 100.

(100 = 20*5, 25*4)

So we can take the common denominator 100.

14*4/25*4 =56/100. ∴14/25 = 56/100

11*5/20*5  =55/100. ∴11/20  = 55/100

56>55

∴56/100 > 55/100

∴14/25 > 11/20

Hope it's good;)

7 0
3 years ago
How do you solve this? Please help
Pie
Wbertkdiwrjrjjwjwj !!!
6 0
3 years ago
If a vertical line is dropped from the x-axis to the point (12, –9) in the diagram below, what is the value of sec?
dem82 [27]

Answer:

Value of \sec \theta = \frac{5}{4}

Step-by-step explanation:

Given: A vertical line is dropped from the x-axis to the point (12, -9) as shown in the diagram below;

To find the value of \sec \theta.

By definition of secants;

\sec \theta = \frac{1}{\cos \theta}

Now, first find the cosine of angle \theta

As the point (12 , -9) lies in the IV quadrant , where \cos \theta > 0

Consider a right angle triangle;

here, Adjacent side = 12 units and Opposite side = -9 units

Using Pythagoras theorem;

(Hypotenuse side)^2= (12)^2 + (-9)^2 = 144 + 81 = 225

or

Hypotenuse = \sqrt{225} =15 units

Cosine ratio is defined as in a right angle triangle, the ratio of adjacent side to hypotenuse side.

\cos \theta = \frac{Adjacent side}{Hypotenuse side}

then;

\cos \theta = \frac{12}{15} = \frac{4}{5}

and

\sec \theta = \frac{1}{\cos \theta}= \frac{1}{\frac{4}{5}} = \frac{5}{4}

therefore, the value of \sec \theta is, \frac{5}{4}

5 0
3 years ago
Read 2 more answers
Can somebody help me out pleaseeee ??
nexus9112 [7]

Answer:

67.5cm^2

Step-by-step explanation:

area of a triangle is 0.5xaxb

5 0
3 years ago
Read 2 more answers
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