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3 years ago

Find the derivative of x³/tanx

Mathematics

1 answer:

juin [17]3 years ago

7 0

Answer:

Below.

Step-by-step explanation:

We apply the quotient rule:

dy/dx = ( tanx * 3x^2 - x^3 * sec^2x) / (tan^2 x)

= x^2( 3tanx - xsec^2x) / tan^2x

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Kiera wants to increase her savings account to a balance of $1,350. Her current balance is $174 and she adds $84 a month to her

Yuri [45]

Her goal : 1350

What she has now: 174

she earns 84$ a month

answer is 14 months because 84* 14 is 1176 and if u add 174 $ to that it will give u 1350.

5 0

4 years ago

Read 2 more answers

May someone help me ASAP?! 24x^4+92x=11x

Lapatulllka [165]

Answer:

x=0 or x= -3/2

Step-by-step explanation:

Step 1: Subtract 11x from both sides.

24x4+92x−11x=11x−11x

24x4+81x=0

Step 2: Factor left side of equation.

3x(2x+3)(4x2−6x+9)=0

Step 3: Set factors equal to 0.

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3 years ago

Solve for v<br><br> -39v=4v+7(v+7)

Orlov [11]

Answer:

-49/50

Step-by-step explanation:

-39v=4v+7(v+7)

Distribute

-39v = 4v +7v+49

Combine like terms

-39v = 11v+49

Subtract 11 v from each side

-39v-11v = 11v-11v +49

-50v = 49

Divide by -50

-50v/-50 = 49/-50

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5 0

4 years ago

Read 2 more answers

Please Help me it’s geometry

mote1985 [20]

Answer:

Option C.

Step-by-step explanation:

Given: In $\Delta OPQ,m\angle O=107^{\circ},m\angle P=28^{\circ}$ .

In $\Delta OPQ$ ,

$m\angle O+m\angle P+m\angle Q=180^{\circ}$ (Angle sum property)

$107^{\circ}+28^{\circ}+m\angle Q=180^{\circ}$

$135^{\circ}+m\angle Q=180^{\circ}$

$m\angle Q=180^{\circ}-135^{\circ}$

$m\angle Q=45^{\circ}$

Now,

$m\angle O>m\angle Q>m\angle P$

In a triangle, the greatest angle has largest opposite side and smallest angle has smallest opposite side. So, we conclude that

$PQ>OP>QO$

Therefore, the correct option is C.

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4 years ago

a) If the price of a train ticket from New York to Washington DC rose by the rate of inflation between 1995 and 2016, how much w

Alla [95]

Answer:

$ 99.60

Step-by-step explanation:

Thinking process:

According to financial data, the inflation rate in 1995 was at 2.5 %.

In 2016, the inflation rate was at 2.1 %

The difference was: 2.1 - 2.5 = -0.4 %

The price in 2016 = Original price - Adjusted price

Adjusted price = $0.004* ($ 100) = $ 0.4$

The new price will be $$ 100 - $ 0.4\\= $ 99.60$

The new price will be $ 99.60

4 0

4 years ago

Find the derivative of x³/tanx​

Find the derivative of x³/tanx