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2 years ago

B=0

Mathematics

1 answer:

riadik2000 [5.3K]2 years ago

4 0

Answer:

Step-by-step explanation:

-(-B) = -(-0) =0

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I need help on this it’s about trig identities

Cerrena [4.2K]

Answer:

The answer to your question is:

Step-by-step explanation:

1.-

$\frac{1 + sin\alpha }{cos\alpha } + \frac{cos\alpha }{1 + sin\alpha } = 2 sec\alpha$

$\frac{(1 + sin\alpha)^{2} + cos^{2} \alpha }{cos\alpha (1 + sin\alpha) }$

$\frac{1 + 2sin\alpha + sin^{2} \alpha+ cos^{2} \alpha }{cos\alpha + sin\alphacos\alpha }$

$\frac{2 + 2sin\alpha }{cos\alpha+ sin\alpha cos\alpha }$

$\frac{2(1 + sin\alpha) }{cos\alpha(1 + sin\alpha ) }$

$\frac{2}{cos\alpha }$

2sec $\alpha$

2.-

sec²x - tanxsecx

$\frac{1}{cos^{2}x } - \frac{sinx}{cosx} \frac{1}{cosx}$

$\frac{1}{cos^{2} x} - \frac{sinx}{cos^{2}x}$

$\frac{1 - sinx}{cos^{2}x }$

$\frac{1 - sinx}{1 - sin^{2}x }$

$\frac{1 - sinx}{(1 - sinx)(1 + sinx)}$

$\frac{1}{1 + sinx}$

3 0

2 years ago

What is the common difference, d, in the arithmetic sequence defined by the formula below? an=2n+1

marishachu [46]

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

d = 2

<h3><u>Solution:</u></h3>

We are given that the arithmetic progression is defined by :

➝ 2n + 1

<em>Therefore, </em>

<u>For </u><u>first </u><u>term</u>

➙ n = 1

➝ 2 × 1 + 1

➝ 2 + 1

➝ 3

<u>For </u><u>second </u><u>term</u>

➙ n = 2

➝ 2 × 2 + 1

➝ 4 + 1

➝ 5

<u>Common </u><u>difference</u>

➙ 2nd term - 1st term

➝ 5 - 3

➝ 2

<h3><u>More </u><u>information</u><u>:</u></h3>

The difference between the successive term and the preceding term is the difference of an arithmetic progression. It is always same for the same arithmetic progression.

5 0

2 years ago

This graph displays a linear function. Interpret the constant rate of change of the relationship.

IgorC [24]

Answer: -3/-1 or 3/1 is the rate of change

Step-by-step explanation:

(0,2)

(3,3) 0-3==-3

2-3= -1

-3/-1

4 0

3 years ago

Read 2 more answers

If the population in a state is 1,821,000 and is decreasing by 0.2% every year. What will the population be in 5 years? Round to

ikadub [295]

1,802,790 is the awnser

3 0

3 years ago

What is 5+6f =11 hhhhhhhhhhyhy

zepelin [54]

Hello!

Answer:

$\boxed{f=1}$

The answer should have positive sign.

Step-by-step explanation:

First, you subtract by 5 from both sides of an equation.

$5+6f-5=11-5$

Then, simplify and subtract by the numbers from left to right.

$11-5=6$

$6f=6$

You divide by 6 from both sides of an equation.

$\frac{6f}{6}=\frac{6}{6}$

Finally, divide numbers from left to right.

$6\div 6=1$

$\boxed{f=1}$ , which is our correct answer.

Hope this helps you!

Have a nice day! :)

-Charlie

Thank you so much!

5 0

2 years ago

Read 2 more answers