3 years ago

Type the expression that results from the following series of steps:

Mathematics

1 answer:

Vesna [10]3 years ago

8 0

Nx2-8 is the expression

You might be interested in

50 POINTSSS PLSSS HELP I AM UNSURE WHAT TO DO

Amanda [17]

Answer:

Step-by-step explanation: 11^9 -11^8 + 11^7 = 2163075981

2163075981/3 = 721025327

2163075981/37 = 58461513

Yes it is divisible by both 3 and 37

3 0

3 years ago

What is the measure of angle RPS?

liq [111]

Answer:

Step-by-step explanation: the type of angle it is

8 0

3 years ago

Read 2 more answers

Prove that sinxtanx=1/cosx - cosx

maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

$\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}$

Taking the RHS, note

$\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}$

Remember that

$\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)$

Therefore,

$\dfrac{1-\cos^2(x)}{\cos(x)} = \dfrac{\sin^2(x)}{\cos(x)} = \dfrac{\sin(x)\sin(x)}{\cos(x)}$

Once

$\dfrac{\sin(x)}{\cos(x)} = \tan(x)$

Then,

$\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)$

Hence, it is proved

5 0

3 years ago

What is the perimeter of PQR? Show your work.

xz_007 [3.2K]

I do not know how to show the working out but its 4+6+6

3 0

3 years ago

Read 2 more answers

Please help See the picture Line A , B , C OR D ? Help

emmainna [20.7K]

Answer:

It's the one on the bottom left

Step-by-step explanation:

8 0

3 years ago