All categories

2 years ago

Sinθ/cosθtanθ=1how is this identity true?

Mathematics

1 answer:

Yakvenalex [24]2 years ago

7 0

Answer:

This is actually not an identity.

You might be interested in

Ismail school is at the corner of high Street and second Avenue. The corner forms a right angle. How might he describe the way t

disa [49]

Answer:

Step-by-step explanation:

street never meet

4 0

3 years ago

Find the volume of the wedge-shaped region contained in the cylinder x2 + y2 = 49, bounded above by the plane z = x and below by

fiasKO [112]

$\displaystyle\iiint_R\mathrm dV=\int_{y=-7}^{y=7}\int_{x=-\sqrt{49-y^2}}^{x=0}\int_{z=x}^{z=0}\mathrm dz\,\mathrm dx\,\mathrm dy$

Converting to cylindrical coordinates, the integral is equivalent to

$\displaystyle\iiint_R\mathrm dV=\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}\int_{z=r\cos\theta}^{z=0}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}-r^2\cos\theta\,\mathrm dr\,\mathrm d\theta$
$=-\displaystyle\left(\int_{\theta=\pi/2}^{3\pi/2}\cos\theta\,\mathrm d\theta\right)\left(\int_{r=0}^{r=7}r^2\,\mathrm dr\right)$
$=\dfrac{2\times7^3}3=\dfrac{686}3$

4 0

3 years ago

What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(0.5x)? A) vertical stretching B) vertical

PtichkaEL [24]

<h3><u>Answer:</u></h3>

Option: D

Horizontal stretching.

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

We have to find the effect on the graph of the function f(x)=2x when it is replaced by f(0.5 x).

We know that when a parent function f(x) is replaced by f(kx) then either the graph is stretched horizontally or shrinked horizontally.

if k>1 then the graph is shrinked horizontally.

if k<1 then the graph is stretched horizontally.

Hence here k=0.5<1 so the graph of the function is stretched horizontally.

3 0

3 years ago

Read 2 more answers

X ⋅ x ⋅ x ⋅ x ⋅ x = ? 5x x(x + 5) x + 5 x5

vampirchik [111]

Answer

x.x.x.x.x = 5x

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

I- Please someone help me -_- I hate math so much

zzz [600]

Answer:

5 & 13

Step-by-step explanation:

a. -9 + 4 = -5

Absolute Value = 5

b. Absolute value of -9 is 9

9 + 4 = 13

<em>hope this helps :)</em>

6 0

2 years ago

Read 2 more answers

Sinθ/cosθtanθ=1how is this identity true?​

Sinθ/cosθtanθ=1how is this identity true?