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3 years ago

Plz help me answer 1 2 and 3

Mathematics

1 answer:

Yuki888 [10]3 years ago

5 0

YesAnswer:

Step-by-step explanations d

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Verify the identity. 4 csc 2x = 2 csc2x tan x

vlada-n [284]

Step-by-step explanation:

$4csc(2x) = 2csc^2(x) tan(x)$

We start with Left hand side

We know that csc(x) = 1/ sin(x)

So csc(2x) is replaced by 1/sin(2x)

$4 \frac{1}{sin(2x)}$

Also we use identity

sin(2x) = 2 sin(x) cos(x)

$4 \frac{1}{2sin(x)cos(x)}$

4 divide by 2 is 2

Now we multiply top and bottom by sin(x) because we need tan(x) in our answer

$2\frac{1*sin(x)}{sin(x)cos(x)*sin(x)}$

$2\frac{sin(x)}{sin^2(x)cos(x)}$

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

We know that sinx/ cosx = tan(x)

Also 1/ sin(x)= csc(x)

so it becomes 2csc^2(x) tan(x) , Right hand side

Hence verified

6 0

3 years ago

Find the solutions to the system

Musya8 [376]

y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)

y=x^2-3x-1
y=8x-1
Solution = (0,-1) and (11,87)

3 0

4 years ago

What is the value of X? 1. 24 2. 13.5 3. 144 4. 2.67

stealth61 [152]

Answer:

i think it would be a 24

Step-by-step explanation:

6×3 = 18

8×3 = 24

6 0

3 years ago

Read 2 more answers

Please help please help please help please help please help first to asnwer gets brainleyist

Licemer1 [7]

The answer is B. 60 because length Time width 5x12

6 0

3 years ago

What is 19 plus 8 times 5 plus 8

NemiM [27]

Answer:

19+8*5+8=67

Step-by-step explanation:

when you add 19 with 8 then you times it with 5 then add 8 you get 67

5 0

3 years ago

Plz help me answer 1 2 and 3​

Plz help me answer 1 2 and 3