All categories

3 years ago

Pls help me with this question

Mathematics

1 answer:

Andrei [34K]3 years ago

7 0

Answer:

Step-by-step explanation:

(sin(2n) − 1) / (sin n − cos n)

-(1 − sin(2n)) / (sin n − cos n)

-(1 − 2 sin n cos n) / (sin n − cos n)

-(sin² n − 2 sin n cos n + cos² n) / (sin n − cos n)

-(sin n − cos n)² / (sin n − cos n)

-(sin n − cos n)

cos n − sin n

Limit as n approaches π/4 is 0.

You might be interested in

Question from ucscout need help asap

Kobotan [32]

Answer:

A.S.A congurency.

please mark me brainliest and follow me my friend.

5 0

3 years ago

A cylinder has a volume of 105 cubic centimeter what is the volume of a cone with the same base and height?

pychu [463]

Answer:

Step-by-step explanation:

The formula of a volume of a cylinder:

$V_1=\pi r^2H$

r - radius

H - height

The formula of a volume of a cone:

$V_2=\dfrac{1}{3}\pi r^2H$

If the cylinder and the cone have the same base (radius) and the same height, then the volume of the cone is three times smaller than the volume of the cylinder.

$V_2=\dfrac{1}{3}\underbrace{\pi r^2H}_{V_1}$

Therefore:

$V_2=\dfrac{1}{3}V_1\toV_2=\dfrac{1}{3}\cdot105\ cm^3=35\ cm^3$

5 0

3 years ago

What's 1+1 please tell me I need help my life depends on this

avanturin [10]

2.. expecting something else ?

3 0

3 years ago

Read 2 more answers

please help! i need to find the missing sides of these triangles. will give brainliest if solvers correctly :))

asambeis [7]

Answer:

3.72769

Step-by-step explanation:

Use tangent - tan74 = 13/x

Solving for x gives you 3.72769

I'm not sure how many decimal places you need, so there are most of them

Hopefully this helps- let me know if you have any questions

3 0

3 years ago

Which expression is a factor of 9x^2-4x+1 ( ps ^2 is an exponent)

erastovalidia [21]

Answer:

The discriminant b2−4ac < 0, the equation has no real number solutions, it has complex solutions

Step-by-step explanation:

9x² - 4x + 1 = 0 ax² + bx + c = 0

The discriminant: b² - 4ac = (-4)² - 4*9*1 = 16 - 36 = -20

b2−4ac < 0, the equation has no real number solutions, it has complex solutions

3 0

3 years ago

Pls help me with this question ​

Pls help me with this question