2 years ago

I don’t even know how to do this

Mathematics

1 answer:

Doss [256]2 years ago

8 0

Answer:

1 – cosθ/1 + cosθ = secθ – 1/secθ + 1

Here, we know that secθ = 1/cosθ

Now,

1 – cosθ/1 + cosθ = secθ – 1/secθ + 1

1 – cosθ/1 + cosθ = 1/cosθ – 1 ÷ 1/cosθ + 1

1 – cosθ/1 + cosθ = 1 – cosθ/cosθ ÷ 1 + cosθ/cosθ

1 – cosθ/1 + cosθ = 1 – cosθ/1 + cosθ

Hence Proved!!

<u>-TheUnknownScientist</u><u> 72</u>

You might be interested in

Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase. SHOW ALL WORK!!!

k0ka [10]

Answer:

20%

Step-by-step explanation:

90 - 75 = 15

15 ÷ 75 = 0.2

0.2 x 100% = 20%

8 0

3 years ago

The measure of the angle's supplement is 40° more than three times that of its complement. find the measure of the angle descr

Lemur [1.5K]

Angle is x. sup - adds up to 180. comp adds up to 90

180-x = 3(90-x)+40
180-x = 270-3x+40
180-x = 310-3x
180+2x = 310
2x = 130
x=65

8 0

3 years ago

The age of the Hawaiian islands gets older as you move from east to west. If the half-life of K-40 is 1.3 billion years, approxi

Mumz [18]

Answer:

$t \approx 750550.12\,yr$

Step-by-step explanation:

The time constant of the isotope is:

$\tau = \frac{1.3\times 10^{9}\,yr}{\ln 2}$

$\tau \approx 1.876 \times 10^{9}\,yr$

The decay of the isotope is described by the following model:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

Now, the time is cleared in the equation:

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = - (1.876\times 10^{9}\,yr)\cdot \ln 0.9996$

$t \approx 750550.12\,yr$

5 0

3 years ago

PLEASE HELP, algebra 1

maxonik [38]

The equation for the quadratic variation is:
y = kx^2
Plug in x and y values to solve for 'k'
32 = k(2^2)
32 = 4k
k = 32/4 = 8

4 0

3 years ago

Question is in picture posted but this needs 20 characters so here ya go

Katyanochek1 [597]

Answer:

Step-by-step explanation:

The dilation with the center of dilation at the origin and scale factor of 4 has the rule

(x,y)→(4x,4y).

Thus,

A(-1,3)→A'(-4,12)
B(2,1)→B'(8,4)
C(-2,-1)→C'(-8,-4)

A'(-4,12) - option B

B'(8,4) - option C

C'(-8,-4) - option D

3 0

3 years ago