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iVinArrow [24]
2 years ago
14

If sin =1/2then show that 3cos -4cos^3=0z

Mathematics
1 answer:
Katarina [22]2 years ago
7 0

Step-by-step explanation:

ever coner should have a value.... for example sinA or cos$

please check the question again

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How to write 1/4 as a decimal
Gnom [1K]

Answer:

0.25

Step-by-step explanation:

As a decimal, 0.25

As a fraction, 1/4

As a percentage, 25%

3 0
3 years ago
Read 2 more answers
Find sin D sin E cos D and cos E
Andrew [12]

9514 1404 393

Answer:

  sin(D) = cos(E) = (√3)/2

  cos(D) = sin(E) = 1/2

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between trig functions and right triangle sides.

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

For this diagram, this means ...

  sin(D) = cos(E) = (13√3)/26 = (√3)/2

  cos(D) = sin(E) = 13/26 = 1/2

5 0
2 years ago
If the 6th term of an arithmetic progres- sion is 11 and the first term is 1, find the common difference.​
Darina [25.2K]

Answer:

2

Step-by-step explanation:

An arithmetic progression with first term a and common difference d has the following first 6 terms:

a, a + d, a + 2d, a + 3d, a + 4d, a + 5d

We are given a = 1 and a + 5d = 11.

1 + 5d = 11

5d = 10

d = 2

Answer: The common difference is 2.

3 0
1 year ago
I need help asap for this question
Nuetrik [128]

Answer:

1 5/6 is on the twelfth line/tick mark. 2 1/3 is on the 15 line/tick mark.

Step-by-step explanation:

Go to the 1 and count up five lines. (5/6) For the 2nd one convert the 1/3 into 6ths. You now have 2 2/6. go to the 2 and count up 2 lines.

8 0
3 years ago
A.
tamaranim1 [39]

Answer:

B

Step-by-step explanation:

The pattern is x/-3

3 0
2 years ago
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