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3 years ago

8

HOW CAN YOU SAY 100,203 IN WORD FORM!!!!!

2 answers:

Over [174]3 years ago

4 0

One hundred thousand two hundred and three

garik1379 [7]3 years ago

3 0

One hundred thousand two hundred and three

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PART 5 - Mathematical Knowledge The product of 3! is <br>

sdas [7]

Stop plagiarizing u weirdo

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4 years ago

Solve the equation for all real values of x.<br> cosxtanx - 2 cos x=-1

IceJOKER [234]

Solution to equation $cosxtanx - 2 cos^2 x=-1$ for all real values of x is $x=2k\pi + \frac{\pi}{6} , x=2k\pi + \frac{5\pi}{6}$ .

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

Here we have , $cosxtanx - 2 cos^2 x=-1$ . Let's solve :

⇒ $cosxtanx - 2 cos^2 x=-1$

⇒ $cosx(\frac{sinx}{cosx}) - 2 cos^2 x=-1$

⇒ $sinx = 2 cos^2 x-1$

⇒ $sinx = 2 (1-sin^2x)-1$

⇒ $sinx = 1-2sin^2x$

⇒ $2sin^2x+sinx-1=0$

By quadratic formula :

⇒ $sinx = \frac{-b \pm \sqrt{b^2-4ac} }{2a}$

⇒ $sinx = \frac{-1 \pm \sqrt{1^2-4(2)(-1)} }{2(2)}$

⇒ $sinx = \frac{-1 \pm3}{4}$

⇒ $sinx = \frac{1}{2} , sinx =-1$

⇒ $sinx = sin\frac{\pi}{6} , sinx = sin\frac{3\pi}{2}$

⇒ $x=\frac{\pi}{6} , x=\frac{3\pi}{2}$

But at $x=\frac{3\pi}{2}$ we have equation undefined as $cos\frac{3\pi}{2}=0$ . Hence only solution is :

⇒ $x=\frac{\pi}{6}$

Since , $sin(\pi -x)=sinx$

⇒ $x=\pi -\frac{\pi}{6} = \frac{5\pi}{6}$

Now , General Solution is given by :

⇒ $x=2k\pi + \frac{\pi}{6} , x=2k\pi + \frac{5\pi}{6}$

Therefore , Solution to equation $cosxtanx - 2 cos^2 x=-1$ for all real values of x is $x=2k\pi + \frac{\pi}{6} , x=2k\pi + \frac{5\pi}{6}$ .

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3 years ago

Find the surface area of the prism

steposvetlana [31]

Answer:

The picture is too blurry. could you submit a new photo?

Step-by-step explanation:

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3 years ago

Read 2 more answers

peaches are 1.79 a pound at the grocery store.if kim bought 3.5 pounds of peaches how much did she spend?

Westkost [7]

She spent 6.265 pounds, if you round it to the nearest hundredth, it would be 6.27 pounds

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1 year ago

For 5he scatter plot given, determine whether an exponential function, a logarithmic function or a linear function is the best c

Zigmanuir [339]

Answer:

Linear function

Explanation:

Given the scattered plot in the attached image.

We want to identify the type of function that can best model the given scattered plot.

The scattered point as shown in the attached image form a straight line, So, the best type of function that can best model it is a linear function (straight-line graph).

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2 years ago