MATHEMATICS MIDDLE SCHOOL

Prove, Cosec2A + cot2A = cotA

Answers

Answer 1

Answer:

Proved

Step-by-step explanation:

Cosec2A + cot2A = cotA

On Left hand-side

$Cosec2A + cot2A = (1)/(sin2A) +(cos2A)/(sin2A) \n\n\n$

$=(1)/(2sinAcosA) +(2cos^2A-1)/(2sinAcosA)$

$(1+2cos^2A-1)/(2sinAcosA) \n\n\n=(2cos^22A)/(2sinAcosA) \n\n=(cosA)/(sinA) \n\n\n=cotA$

Learn More

Trigonometric ratios: brainly.com/question/12462203

Keywords: Trigonometeric

#LearnwithBrainly

Related Questions

The sum of 15 and the product of 5 and v
Tim is designing a logo. The logo is a polygon. Whose shape is a square attached to an equilateral triangle. The square and the equilateral triangle. The square and equilateral have side lengths of 2 centimeters, and the equilateral triangle has a height of about 1.7 cm. Find the area of the logo.
3.0188 rounded to the nearest thousandths
The Keller family's dinner bill is $55.35. This includes an 8% meal tax and a 15% tip on original meal for the server. What was the original cost of the meal?
Angelo ride his bike around a bike trail that was 1/4 of a mile long.he rode his bike around the trail 8 times .Angelo says he rode a total of 8/4 miles

What is the solution to this inequality
2(x - 4 ) < 5x + 4

Answers

Answer:

x<4

Step-by-step explanation:

-Simplify the arithmetic

-Group all x terms on the left side of the equation

-Group all constants on the right side of the equation

-Isolate the x.

-Solution on a coordinate plane

Joann invested $43,000 at 6% to be compounded annually. What will be the value of Joann's investment in 2 years? Round your answer to the nearest cent. Note: 365 days in a year and 30 days in a month.

Answers

Answer:

The total amount after 2 years of Joann's investment at a rate of 6% compounded annually is US$ 48.314.80 (rounded to the nearest cent)

Step-by-step explanation:

1. Let's review the data given to us for answering the question:

Investment amount = US$ 43,000

Duration of the investment = 2 years

Annual interest rate = 6% compounded annually

2. Let's find the future value of this investment after 2 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment = US$ 43,000

number of periods (n) = 2 (2 years compounded annually)

rate (r) = 6% = 0.06

Replacing with the real values, we have:

FV = 43,000 * (1 + 0.06) ²

FV = 43,000 * (1.06) ²

FV = 43,000 * 1.1236

FV = US$ 48.314.80

What is the best estimate for the product of 289 and seven

Answers

the best estimate is 300*7=2100

The steps below show the incomplete solution to find the value of x for the equation 5x − 2x − 3 = −2 + 15: Step 1: 5x − 2x − 3 = −2 + 15 Step 2: 5x − 2x − 3 = 13 Step 3: 3x − 3 = 13 Which of these is most likely the next step? (4 points) 3x = 16 3x = 10 3x = 39 3x = 3i believe it is 3x=3