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mel-nik [20]
3 years ago
14

Simplify the expression ?

Mathematics
1 answer:
melomori [17]3 years ago
7 0

Answer:

The answer is cscx(cscx - 1) ⇒ the second answer

Step-by-step explanation:

∵ csc²x = cot²x + 1

∴ \frac{cot^{2}x+1-1 }{1+sinx}=\frac{cot^{2}x }{1+sinx}

Multiply the fraction by its conjugate 1 - sinx (up and down)

∴ \frac{cot^{2}x }{1+sinx}*\frac{1-sinx}{1-sinx}=\frac{cot^{2}x(1-sinx) }{1-sin^{2}x}

∵ 1 - sin²x = cox²x

∴ \frac{cot^{2}x(1-sinx) }{cos^{2}x }

∵ cot²x = cos²x/sin²x

∴ \frac{1-sinx}{sin^{x}}=\frac{1}{sin^{2}x}-\frac{sinx}{sin^{2}x}=csc^{2}x-cscx

Take cscx as a common factor

∴ cscx(cscx - 1)

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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
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Anna [14]

Answer:

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Step-by-step explanation:

\frac{1}{5} (2x+10)=4

Multiply both sides of the equation by 5.

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Simplify both sides of the equation.

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Subtract 10 from both sides of the equation.

2x=10

Divide each term by 2 and simplify.

x=5

--------------------------------------------------------------------

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6 0
3 years ago
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The standard deviation of derby dragon is > that of balwin bears > aviston aces.

So the more consistent height is that of aviston aces players.

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Step-by-step explanation:

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Step-by-step explanation:

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