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3 years ago

15

Verify the identity

9" id="TexFormula1" title=" sin( 2x) = 2 \cot(x) \sin^{2} (x)" alt=" sin( 2x) = 2 \cot(x) \sin^{2} (x)" align="absmiddle" class="latex-formula">

1 answer:

Mariulka [41]3 years ago

6 0

Answer:

That equation is an Identity.

Step-by-step explanation:

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Please help!! It’s engenuity.

MakcuM [25]

9514 1404 393

Answer:

(c) 1/(36·a^4·b^10)

Step-by-step explanation:

The applicable rules of exponents are ...

(a^b)/(a^c) = a^(b-c)

(a^b)^c = a^(bc)

a^-1 = 1/a

__

$\left(\dfrac{(2a^{-3}b^4)^2}{(3a^5b)^{-2}}\right)^{-1}=\dfrac{(3a^5b)^{-2}}{(2a^{-3}b^4)^2}=\dfrac{3^{-2}a^{-10}b^{-2}}{2^2a^{-6}b^8}=\dfrac{1}{3^22^2}a^{-10-(-6)}b^{-2-8}\\\\=\boxed{\dfrac{1}{36a^4b^{10}}}$

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3 years ago

Brainliest! Divide. 2/3÷4/5

vlada-n [284]

Answer:

<em>2</em><em>/</em><em>3</em><em> </em><em> </em><em>/</em><em> </em><em> </em><em>4</em><em>/</em><em>5</em>

<em>2</em><em> </em><em>X </em><em>4</em><em> </em><em>/</em><em> </em><em>5</em><em> </em><em>X </em><em>3</em>

<em>8</em><em> </em><em>/</em><em> </em><em>1</em><em>5</em><em> </em><em>is</em><em> </em><em>your</em><em> </em>

Step-by-step explanation:

hope it helps u if yes then brainlist me and follow me

6 0

4 years ago

What is (-x+3)-(x-5)

murzikaleks [220]

$( - x + 3) - (x - 5)$

$= - x + 3 - x + 5$

$= - 2x + 8$

$= - 2(x - 4)$

Hence, Answer is = - 2(x - 4)

6 0

3 years ago

Read 2 more answers

I'm havingn trouble in math. What's 3/4 - 2/5 in fraction form?

snow_tiger [21]

$\dfrac{3}{4}-\dfrac{2}{5}=\dfrac{15}{20}-\dfrac{8}{20}=\dfrac{7}{20}
$

6 0

3 years ago

At the grocery store last week, small boxes of facial tissue were on sale at 4 boxes for $5. This week they mark a new price at

Anastaziya [24]

Answer: 36%

Step-by-step explanation:

Since the price last week, was 4 boxes for $5. Therefore, the price per box will be:

= $5/4

= $1.25 per box

This week they mark a new price at 5 boxes for $4. The price per box will be:

= $4/5

= $0.8 per box

The percent decrease in the price per box this week will be:

= (1.25 - 0.80)/1.25 × 100

= 0.45/1.25 × 100

= 36%

The Percentage decrease is 36%

7 0

3 years ago