2 years ago

Solve the above attached questionThanks

Mathematics

1 answer:

seropon [69]2 years ago

4 0

Answer:

Step-by-step explanation:

Given,

tan²A - 5tanA + 1 = 0

tan²A - 5tanA = -1

tanA(tanA - 5) = -1

tanA - 5 = -1/tanA

We know that 1/tanA= cotA

So,

tanA - 5 = -cotA

tanA + cotA= 5

Now, Making square of both sides,

(tanA +cotA)² = 5²

Expanding RHS by (a + b)² = a² + b² +2ab tan²A + cot²A + 2tanA.cotA= 25

tan²A + cot²A + 2tanA ×(1/tanA) = 25

tan²A + cot²A + 2 = 25

tan²A + cot²A = 25-2

tan²A + cot²A = 23

You might be interested in

Please hrlp....??????

solong [7]

Answer:

147

Step-by-step explanation:

180-33=147

5 0

2 years ago

Sarah uses a total of 36 sheets of paper for her story. Each chapter is 9 pages , how many pages are in her short story

MariettaO [177]

Answer:

4 pages

Step-by-step explanation:

You divide 36 by 9

4 0

2 years ago

Anybody can help?????

Vikentia [17]

The formula of an area of a circle:

$A=\pi r^2$

r - a radius

We have r = 14m. Substitute:

$A=\pi\cdot14^2=196\pi\ m^2$

If you want an approximate area, you can accept $\pi\approx3.14$

Then:

$A\approx196\cdot3.14=615.44\ m^2$

7 0

3 years ago

I'm one centimeter grid paper draw a 6 by 2 centimeter rectangle what is the perimeter of the rectangle and what is the area of

swat32

6x2=area
6+6+2+2=perimater

3 0

3 years ago

Simon, 35, works for a company which offers a 4% match to his 401(k) plan. He previously invested $25,000 into an IRA. What woul

Paha777 [63]

Answer: answer

Step-by-step explanation:

4 0

3 years ago

Solve the above attached questionThanks​

Solve the above attached questionThanks