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MA_775_DIABLO [31]
3 years ago
10

Giving brainliest!!!!!!!!!!

Mathematics
1 answer:
son4ous [18]3 years ago
5 0
It’s A i did the test myself..
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Simplify the following expression. cot^2x secx-cosx
Solnce55 [7]

ANSWER

\cos(x)   \cot ^{2} (x)

EXPLANATION

The given expression is;

\cot^{2} (x)  \sec(x)  -  \cos(x)

Change everything to

\sin(x)

and

\cos(x)

This implies that,

\frac{ \cos^{2} (x) }{ \sin^{2} (x) }  \times ( \frac{1}{ \cos(x) } )-  \cos(x)

Cancel the common factors,

\frac{ \cos(x) }{ \sin^{2} (x) }  \times ( \frac{1}{1} )-  \cos(x)

\frac{ \cos(x) }{ \sin^{2} (x) }-  \cos(x)

\frac{ \cos(x)  -  \sin ^{2} (x)  \cos(x) }{ \sin^{2} (x) }

= \frac{ \cos(x)(1  -  \sin ^{2} (x) ) }{ \sin^{2} (x) }

= \frac{ \cos(x)(\cos^{2} (x) ) }{ \sin^{2} (x) }

= \cos(x)  \cot^{2} (x)

6 0
3 years ago
Simplify the expression:<br> -10+-v–2+-9
Ira Lisetskai [31]
-10 + -v - 2 + -9

First, simplify. / Your problem should look like: -10 - v - 2 - 9
Second, simplify/subtract. / Your problem should look like: -v - 21

Answer: -v - 21

4 0
3 years ago
Read 2 more answers
Can you guys help me
vlada-n [284]
The answer is a have a great day/night !
5 0
3 years ago
Which equation has infinitely many solutions?
raketka [301]

Answer:

C

Step-by-step explanation:

5.1 + 2y + 1.2 = -2 + 2y + 8.3 ( subtract 2y on each side)

5.1 + 1.2 = -2 + 8.3 ( collect like terms)

6.3 = 6.3

If the equation ends with a true statement (ex: 2=2) then you know that there's infinitely many solutions or all real numbers.

4 0
3 years ago
Read 2 more answers
Look at the picture down bellow.
marishachu [46]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
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