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telo118 [61]
3 years ago
11

√10 Multiple √15 is equal to

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

a). 5√6

\sqrt{10}  \times  \sqrt{15}  \\  = ( \sqrt{5}  \times  \sqrt{2} ) \times ( \sqrt{5}  \times  \sqrt{3} ) \\  =  {( \sqrt{5}) }^{2}  \times ( \sqrt{2}  \times  \sqrt{3} ) \\  = 5 \times ( \sqrt{6} ) \\  = 5 \sqrt{6}

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What is tan(θ/2), when tan(θ) = 4/3 and when π < θ < 3π/2?
Tamiku [17]
Tan (Ф/2)=⁺₋√[(1-cosФ)/(1+cosФ)]
if π<Ф<3π/2;
 then,  Where is Ф/2??
π/2<Ф/2<3π/4; therefore Ф/2 is in the second quadrant; then tan (Ф/2) will have a negative value.

tan(Ф/2)=-√[(1-cosФ)/(1+cosФ)]

Now, we have to find the value of cos Ф.
tan (Ф)=4/3
1+tan²Ф=sec²Ф
1+(4/3)²=sec²Ф
sec²Ф=1+16/9
sec²Ф=(9+16)/9
sec²Ф=25/9
sec Ф=-√(25/9)        (sec²Ф will have a negative value, because Ф is in the        sec Ф=-5/3                                 third quadrant).

cos Ф=1/sec Ф
cos Ф=1/(-5/3)
cos Ф=-3/5

Therefore:

tan(Ф/2)=-√[(1-cosФ)/(1+cosФ)]
tan(Ф/2)=-√[(1+3/5)/(1-3/5)]
tan(Ф/2)=-√[(8/5)/(2/5)]
tan(Ф/2)=-√4
tan(Ф/2)=-2

Answer: tan (Ф/2)=-2; when tan (Ф)=4/3


3 0
3 years ago
7a+3b=27 <br> 6a+3b=24<br><br> Solve in simultaneous<br><br> A=<br> B=
givi [52]

Answer:

A= 3,B = 2

Hope it helps you

if yes mark me brainliest

3 0
2 years ago
Read 2 more answers
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ser-zykov [4K]
Hi,
Let assume x the 3th side.
x<12+7==> x<19
12<x+7==>x>5
So 5<x<19==> 5+7+12<x+7+12<19+7+12
==>24<x<38
Answer d.

8 0
3 years ago
Solve for x<br> A) 36<br> B) 54<br> C) 72<br> D) 84 <br> Ayo help a girl out
kykrilka [37]

Answer:

72°

Step-by-step explanation:

This is called an isosceles triangle. This means that the 2 angles related to the equal sides, are also equal. Hence, the answer is 72°

6 0
3 years ago
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Observe os pontos Z, Y, W, X e V marcados na reta numérica abaixo.
adelina 88 [10]

Y

A raiz quadrada de 14 seria 3.74165738677 ou 3.7

Arredondamos para 4 já q 7 é próximo de 10

5 0
3 years ago
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