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1 year ago

Evaluate the following expressionsYour answer must be an exact angle in radians and in the interval Example: Enter pi/6 for lcei

l- pi 2 , pi 2 ] pi R

Mathematics

1 answer:

sukhopar [10]1 year ago

3 0

$\begin{gathered} We\text{ can use a calculator to evaluate the given questions.} \\ tan^{-1}(1)\text{ = }\frac{\pi}{4} \\ tan^{-1}(-\sqrt{3})\text{ = }\frac{-\pi}{3} \\ tan^{-1}(-1)\text{ = }\frac{-\pi}{4} \end{gathered}$

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Lets calculate the taxes that would been payed at each city:
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3 years ago

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Step-by-step explanation:

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2 years ago

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alukav5142 [94]

Answer:

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Step-by-step explanation:

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3 years ago

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Fittoniya [83]

<h3>Answer:</h3>

$\boxed{\pink{\sf \leadsto Yes \ there \ is \ a \ solution \ of \ the \ given \ inequality .}}$

<h3>Step-by-step explanation:</h3>

A inequality is given to us and we need to convert it into standard form and see whether if it has a solution . So let's solve the inequality.

The inequality given to us is :-

$\bf\implies |2y + 3 | - 1 \leq 0 \\\\\bf\implies |2y+3|\leq 1 \\\\\bf\implies (|2y+3|)^2 \leq 1^2 \\\\\bf\implies (2y+3)^2 \leq 1 \\\\\bf\implies (2y)^2+3^2+2(2y)(3) \leq 1 \\\\\bf\implies 4y^2+9+12y - 1 \leq 0 \\\\\bf\implies 4y^2+12y+8 \leq 0 \\\\\bf\implies 4( y^2 + 3y + 2 ) \leq 0 \\\\\bf\implies y^2+3y +2 \leq 0 \:\:\bigg\lgroup \purple{\bf Standard \ form \ of \ inequality }\bigg\rgroup \\\\\bf\implies y^2y+2y+y+2 \leq 0 \\\\\bf\implies y(y+2)+1(y+2)\leq 0 \\\\\bf\implies ( y+2)(y+1)\leq 0 \\\\\bf\implies \boxed{\red{\bf y \leq (-2) , (-1) }}$

Let's plot a graph to see its interval . Graph attached in attachment .

Now we can see that the Interval notation of would be ,

$\boxed{\boxed{\orange \tt \purple{\leadsto}y \in [-2,-1] }}$

<h3>Hence the standard form of inequality is y²+3y +2 ≤ 0 and the Solution set of the inequality is [ -2 , -1 ] .</h3>

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spin [16.1K]

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Step-by-step explanation:

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3 years ago