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Eva8 [605]
3 years ago
6

Solve the equation!3 tan^3θ = tan θ

Mathematics
1 answer:
andreev551 [17]3 years ago
8 0
3 tan³ t(theta) = tan t(theta)
3 tan³ t - tan t = 0
tan t ( 3 tan² t - 1 ) = 0
tan t = 0
t 1 = k π ,  k ∈ Z
3 tan ² t - 1 = 0
3 tan ² t = 1
tan ² t = 1/3
tan t = +/- √3/3
t 2 = π / 6 + k π
t 3 = - π / 6 + k π ,  k ∈ Z
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klio [65]

Answer:

x = 16

Step-by-step explanation:

please mark this answer as brainlest

6 0
2 years ago
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William has been contracted to paint a school classroom. The classroom is 20 m long, 15 m wide and 5 m high. There are four wind
valina [46]

Answer:

Step-by-step explanation:

l -> length

b -> width

h -> height

Find the area of four walls and ceiling. then subtract the area of four windows and a door form that area.

Area of four walls + <u>ceiling</u> = 2( lh + bh) +<u>lb</u>

 = 2*(20*5 + 15*5) + 20*15

= 2( 100 + 75) + 300

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Area of four windows = 4*6 = 24 sq.m

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Area of four walls excluding 4 windows and door = 650 - 24 - 2 = 624 sq.m

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3 0
3 years ago
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Hope someone can help me
Advocard [28]

Hi!

Let's find out how much he has to pay for each of the deals.

Deal 1

£1.75 per mile.

192 x 1.75 = 336

£336

Deal 2

15% off of £680

\frac{x}{680} \frac{15}{100}

680 x 15 = 10200

10200/100 = 102

680 - 102 = 578

£578

Deal 3

£90 per day - 1/10

90 x 7 = 630

1/10 of 630 = 63

630 - 63 = 567

£567

The cheapest deal would be Deal 1

Hope this helps! :)

-Peredhel

5 0
3 years ago
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Answer:

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Given data

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V= πr^2h

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Hence the volume in gallons is

233445.54 gallons  (from conversion tables)

7 0
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5x+6.5=8x-2.5 what does this mean and i would like to know how to solve this equation
Bingel [31]

The answer is x = 3

I hope this helped

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3 years ago
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