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kobusy [5.1K]
2 years ago
5

The Answer to This Question

Mathematics
2 answers:
docker41 [41]2 years ago
7 0

<u>to nem ai se vc excluiu minha respostpa q soud o5  oa </u>

<u>n</u>

xenn [34]2 years ago
5 0

Recall the Trigonometric Ratio below:

\tt{ \large{sin \theta =  \frac{opposite}{hypotenuse} } }\\   \tt{\large{cos \theta =  \frac{adjacent}{hypotenuse} }} \\    \tt{ \large{tan \theta =  \frac{opposite}{adjacent} }}

For csc, sec and cot - they are reciprocal of sin,cos and tan.

\tt{ \large{csc  \theta =  \frac{1}{sin \theta} } }\\  \tt{ \large{sec \theta =  \frac{1}{cos \theta} }} \\  \tt{ \large{cot \theta =  \frac{1}{tan \theta} }}

What we know now is our hypotenuse, adjacent and opposite length.

  • hypotenuse = 15
  • opposite = 12
  • adjacent = 9

Therefore,

\large{sin \theta =  \frac{12}{15}  \longrightarrow  \frac{4}{5} } \\ \large{cos \theta =  \frac{9}{15}   \longrightarrow  \frac{3}{5} } \\  \large{ tan \theta =  \frac{12}{9}  \longrightarrow  \frac{4}{3} }As for the reciprocal of three trigonometric ratio. We just swap the numerator and denominator.

\large{csc \theta =  \frac{15}{12}  \longrightarrow  \frac{5}{4} } \\  \large{sec \theta =  \frac{15}{9}  \longrightarrow  \frac{5}{3} }   \\  \large{cot \theta =   \frac{9}{12}  \longrightarrow \frac{3}{4} }

Answer

  • sin = 12/15 —> 4/5
  • cos = 9/15 —> 3/5
  • tan = 12/9 —> 4/3
  • csc = 15/12 —> 5/4
  • sec = 15/9 —> 5/3
  • cot = 9/12 —> 3/4

The first is non-simplifed form while the second that has the arrow pointing is the simplest form.

Let me know if you have any doubts.

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Find an equation of the plane orthogonal to the line
jolli1 [7]

The given line is orthogonal to the plane you want to find, so the tangent vector of this line can be used as the normal vector for the plane.

The tangent vector for the line is

d/d<em>t</em> (⟨0, 9, 6⟩ + ⟨7, -7, -6⟩<em>t </em>) = ⟨7, -7, -6⟩

Then the plane that passes through the origin with this as its normal vector has equation

⟨<em>x</em>, <em>y</em>, <em>z</em>⟩ • ⟨7, -7, -6⟩ = 0

We want the plane to pass through the point (9, 6, 0), so we just translate every vector pointing to the plane itself by adding ⟨9, 6, 0⟩,

(⟨<em>x</em>, <em>y</em>, <em>z</em>⟩ - ⟨9, 6, 0⟩) • ⟨7, -7, -6⟩ = 0

Simplifying this expression and writing it standard form gives

⟨<em>x</em> - 9, <em>y</em> - 6, <em>z</em>⟩ • ⟨7, -7, -6⟩ = 0

7 (<em>x</em> - 9) - 7 (<em>y</em> - 6) - 6<em>z</em> = 0

7<em>x</em> - 63 - 7<em>y</em> + 42 - 6<em>z</em> = 0

7<em>x</em> - 7<em>y</em> - 6<em>z</em> = 21

so that

<em>a</em> = 7, <em>b</em> = -7, <em>c</em> = -6, and <em>d</em> = 21

4 0
3 years ago
75 POINTS!!!
SIZIF [17.4K]

Answer:

1. 0-9

2. 0-6

3. 0-6

Step-by-step explanation:

This scenario can be simulated by generating a set of three numbers using a number generator with numbers 0-9. The numbers 0-6 would represent couples who prefer indoor weddings. If all three numbers in the set are in the range 0-6, it would mean that all three couples prefer indoor weddings.

(ik you might not need this anymore, but I'm hoping it proves useful to others)

5 0
3 years ago
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yanalaym [24]
There are 792 different ways of choosing 5 books from a shelf containing 12 books. This problem can be solved using the combination formula of mathematics. The combination formula of mathematics is a number of way of selecting thing from a collection and the formula stated as n(n-1)...(n-k+1)/k(k-1)...1 (Calculation: 12*11*10*9*8/5*4*3*2*1 = 95040/120 = 792)<span>.</span>
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Step-by-step explanation:

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evablogger [386]

Answer:

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Step-by-step explanation:

Number of total cards in the deck = 52

Number of face cards in the deck = 12

Now, we need to find the number of ways such that the first card is always a face card

Now, first card is face card so number of cards left to be arranged = 52 - 1 = 51

Number of ways to arrange 51 cards = 51!

Also, Number of face cards = 12

So, Total number of required ways = 12 × 51!

8 0
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