2 years ago

Prove that (1+sin2x)/(1-sin2x)=cot^2(x-pi/4)

Mathematics

1 answer:

Jlenok [28]2 years ago

4 0

Answer:

it's simple

Step-by-step explanation:

refer the image

You might be interested in

Simplify: (2x – 3)2 4x2 + 9 4x2 – 12x + 9 4x2 – 12x + 6 4x2 – 6

Alexxandr [17]

Answer:

$4x^2-12x+9$

Step-by-step explanation:

we have

$(2x-3)^2$

we know that

$(a-b)^2=a^2-2ab+b^2$

In this problem

$a=2x\\b=3$

substitute in the formula

$(2x-3)^2=(2x)^2-2(2x)(3)+(3)^2$

$(2x-3)^2=4x^2-12x+9$

7 0

2 years ago

Read 2 more answers

A wheel turns through 90 revolutions per minute how many degrees does it turn through in 1 second

suter [353]

Answer:

540°

Step-by-step explanation:

90 revolutions = 360°×90 = 32400°

32400° in 60 sec or 1 min

so, in 1 sec 32400/60 = 540°

7 0

3 years ago

Read 2 more answers

Next number 3 6 4 8 6 12 10

solniwko [45]

Answer:

Step-by-step explanation:

This sequence follows a pattern of doubling then subtracting by two. The last action was 12 to 10, which is subtracting by two, so the next must be multiplying by 2.

6 0

3 years ago

Part of the population of 7,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 11

Sergio039 [100]

Answer:

1,705 elk

Step-by-step explanation:

7,750 / 50 = 155 groups of elk

155 groups x 11 per group = 1,705 elk.

5 0

2 years ago

30 pts Johnna is cooking a roast that says, "Cook to 160°F." What is the Celsius equivalent of this temperature? A) 65° B) 71° C

dusya [7]

B) 71 degrees celcius

3 0

3 years ago

Read 2 more answers