Ask question

Ask question

All categories

3 years ago

13

Prove that the equation is an identity. tan A tan B = tan A + tan B cot A + cot B Working from the right-hand side, use the trig

onometric identities for tangent and cotangent. RHS = tan A + tan B cot A + cot B

1 answer:

Yuliya22 [10]3 years ago

7 0

Answer:

Stedadasadjdjsjxjnakcp-by-step explanation:bdbdnxhsjd xhdvsh

You might be interested in

Y=-2x²-8x-5 domain and range

Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

$y = - 2 {x}^{2} - 8x - 5$

This is a polynomial function.

The domain is set of all values of x, that makes this function defined.

Since polynomial functions are defined everywhere, the domain is all real numbers.

To find the range we put the function in vertex form:

$y = - 2( {x}^{2} + 4x) - 5$

$y = - 2( {x}^{2} + 4x + 4) - 5 + - 4 \times - 2$

$y = - 2( {x} + 2)^{2} - 5 + 8$

$y = - 2( {x} + 2)^{2} + 3$

The maximum value is 3

The function turns downward, hence the range is:

$y \leqslant 3$

6 0

3 years ago

What is the pathorgeon

SCORPION-xisa [38]

Answer:

it is in a term in biology that came into use in the 1800's to show about anything that can produce disease Hope this helps can I get branliest answer?

Step-by-step explanation:

8 0

3 years ago

If 2/3x -1 = 4, then x=

PolarNik [594]

Answer:

15/2

Step-by-step explanation:

2/3x-1=4

2/3x=4+1

2/3x=5

x=5/(2/3)

x=(5/1)(3/2)

x=15/2

6 0

3 years ago

Is 3x = 2y a linear equation?

mel-nik [20]

Answer:

yes

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

-8)(56)=1<br><br> What is the missing value that makes the equation true?

Rudik [331]

the correct answer is -448

7 0

3 years ago