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Kryger [21]
3 years ago
14

Can someone please help with this math question??

Mathematics
1 answer:
Studentka2010 [4]3 years ago
4 0

Answer:

Hm im not sure but hold on, i think i found it. 1 and 76

Step-by-step explanation:

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Need help with Calculus 1 inverse trig functions
lidiya [134]

Answer:

\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}

Step-by-step explanation:

<u>The Derivative of a Function</u>

The derivative of f, also known as the instantaneous rate of change, or the slope of the tangent line to the graph of f, can be computed by the definition formula

\displaystyle f'(x)=\lim\limits_{\Delta x \rightarrow 0}\frac{f(x+\Delta x)-f(x)}{\Delta x}

There are tables where the derivative of all known functions are provided for an easy calculation of specific functions.

The derivative of the inverse tangent is given as

\displaystyle (tan^{-1}u)'=\frac{u'}{1+u^2}

Where u is a function of x as provided:

y=3tan^{-1}(x+\sqrt{1+x^2})

If we set

u=(x+\sqrt{1+x^2})

Then

\displaystyle u'=1+\frac{2x}{2\sqrt{1+x^2}}

\displaystyle u'=1+\frac{x}{\sqrt{1+x^2}}

Taking the derivative of y

y'=3[tan^{-1}(x+\sqrt{1+x^2})]'

Using the change of variables

\displaystyle y'=3[tan^{-1}u]'=3\frac{u'}{1+u^2}

\displaystyle y'=3\frac{u'}{1+u^2}=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{1+(x+\sqrt{1+x^2})^2}

Operating

\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{1+x^2+2x\sqrt{1+x^2}+1+x^2}

\boxed{\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}}

8 0
3 years ago
Gerald borrowed $750 at 7% simple interest to be paid back in 2 years. How much interest will he pay?
Lisa [10]

Answer:

$105 interest

Step-by-step explanation:

S.I=\frac{PRT}{100}

S.I= \frac{750*7*2}{100}

Interest = $105

5 0
3 years ago
The vertex of this parabola is at (-3, -1). When the y-value is 0, the x-value is 4. What is the coefficient of the squared term
Ivanshal [37]
Hello :
<span>the parabola's equation is : f(x) = a(x+3)²-1
</span><span>the coefficient of the squared expression in the parabola's equation is : a
but ; f(4) = 0
0 = a(4+3)²-1
49a-1=0.....a=1/49
f(x) = 1/49(x-3)²-2</span>
5 0
4 years ago
Simplify each expression. Write your answer without negative exponents.
alukav5142 [94]

16)

s^1/4 * s^1/4  * s^1/4  * s^1/4  = s^(1/4 + 1/4+1/4+1/4) = s^4/4 = s

Answer is s

15) Answer is 1. (because any number to the 0 exponent is equal 1 , except 0)

17)  

= (t^3/6)^2 = t^6/6 = t

Answer is t


5 0
3 years ago
What is 48.4÷ 0.4 cause I don't understand this.
tresset_1 [31]

Answer:

The answer is 121

Step-by-step explanation:

So basically it's like dividing 4 from 4 and you get 1

Then 8 from 4 and it would come out as 2

And divide 4 once more from 4 and get 1 again

4÷4=1

8÷4=2

4÷4=1

Then out the answers together and you got 121

4 0
3 years ago
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