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3 years ago

Hello, please answer the following

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

4 0

Answer:

im not ok really and i don't know

Step-by-step explanation:

nikdorinn [45]3 years ago

4 0

I’m decent.
I’m good I have to much work.
Have an nice day:)
Btw I see you’re an my hero academia fan by you’re profile picture season 5 is coming in March 27

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How can csc^2-cot^2 = 1?

Softa [21]

ANSWER

By simplifying the left hand side using the Pythagorean Identity.

EXPLANATION

The given identity is

$\csc^{2} (x) - \cot^{2} (x) = 1$

Take the left hand side and simplify to get the right hand side.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1}{\sin^{2} (x)} - \frac{ \cos^{2} (x)}{\sin^{2} (x)}$

Collect LCM for the denominators.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1 - \cos^{2} (x)}{\sin^{2} (x)}$

Recall the Pythagorean Identity.

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

This implies that:

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

We substitute this to get,

$\csc^{2} (x) - \cot^{2} (x) = \frac{\sin^{2} (x)}{\sin^{2} (x)}$

$\csc^{2} (x) - \cot^{2} (x) = 1$

6 0

3 years ago

A rectangular prism has a volume of 729 ft3. The length width and height are all the same. What is the is the length of each sid

swat32

Answer:

9 ft

Step-by-step explanation:

As length, width and height are same, then it is a square prism / cube

Volume of prism = 729 ft³

side³ = 729

side³ = 9³

Side = 9 ft

3 0

3 years ago

Read 2 more answers

Calculate: 462 grams(g)=____milligrams (mg)

egoroff_w [7]

Answer:

462 000mg

Step-by-step explanation:

1gram = 1000milligrams

Hence...462 grams...,

; 462 × 1000 = 462 000mg

3 0

3 years ago

2. Given that a = 7, b = 5 and c = 5. Find the square root of 3a + 2b + c

ollegr [7]

Step-by-step explanation:

$3a + 2b + c = 3(7) + 2(5) + 5 \\ = 21 + 10 + 5 \\ = 36 \\ \sqrt{3a + 2b + c} = \sqrt{36} \\ = 6$

5 0

3 years ago

Complete the table 3 5 8 ? 12

nadya68 [22]

4 is the answer........

8 0

3 years ago