3 years ago

1+cosx/1-cosx=tan^2x/(sec^2-1)^2

Mathematics

1 answer:

Radda [10]3 years ago

7 0

Answer:

Take a look at the attachment below

Step-by-step explanation:

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a pizza has a diameter of 16 inches . what is the area of the pizza “in therms of pi”? use the formula A=3.14r^2 . 16 inches rep

arlik [135]

Answer:

Your answer is 64pi square inches

Step-by-step explanation:

The diameter is 16 so the radius is 8.

So the area is pi(r^2)= pi(8^2)

=64pi square inches

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3 years ago

What is the answer? ;3

aleksandrvk [35]

First you add the numbers

6/2*3

Now you calculate the expression

6/2*3

The answer is 9, therefore 9 is your answer

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3 years ago

Acceleration is the change of speed and/or direction of an object. true or false

Vladimir79 [104]

Answer:

false

Step-by-step explanation:

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3 years ago

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A man is in a boat 2 miles from the nearest point on the coast. He is to go to point Q, located 3 miles down the coast and 1 mil

mafiozo [28]

Answer:

The answer is "0.45385".

Step-by-step explanation:

The time is taken to reach the coast $= \frac{\sqrt{(2^2 + x^2)}}{4}$

The time is taken to reach Q after reaching the coast $= \frac{\sqrt{(1 + (3-x)^2)}}{4}$

Total time, $T= \frac{\sqrt{(1 + (3-x)^2)}}{4}+ \frac{\sqrt{(1 + (3-x)^2)}}{4}$

This has to be minimum,

$\to \frac{dt}{dx} = 0$

$\to \frac{\sqrt{(2^2 + x^2)}}{2} + \frac{\sqrt{1 + (3-x)^2}}{3}\\\\ \frac{x}{4}\sqrt{(4+x^2)} + \frac{(x-3)}{(4\sqrt{(x^2-6x+10)}} = 0\\\\\frac{x^2}{16} \times (4+x^2) = \frac{(x-3)^2}{16 \times (x^2-6x+10)}\\\\x^2(4+x^2) = \frac{(x-3)^2}{(x^2-6x+10)}\\\\4x^2+x^4 = \frac{ x^2+9-6x}{(x^2-6x+10)}\\\\ 4x^2+x^4(x^2-6x+10) = x^2+9-6x\\\\4x^4-24x^3+40x^2+x^6-6x^5+10x^4= x^2+9-6x\\\\x^6-6x^5+ 14x^4-24x^3+39x^2+6x-9=0\\\\$

x=0.45385

6 0

3 years ago

What is 36 times 70<br><img src="https://tex.z-dn.net/?f=36%20%5Ctimes%2070" id="TexFormula1" title="36 \times 70" alt="36 \time

siniylev [52]

2,520.

I hope this helped!

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3 years ago

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