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madam [21]
3 years ago
6

Provethat:cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A​

Mathematics
1 answer:
aalyn [17]3 years ago
3 0

Answer:

<h3>Hope it will help you..!! </h3>

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I've included two questions. Hopefully you can help me with both. Thanks!
lubasha [3.4K]

Answer:

  1.  value is 0; x-3 is a factor . . . . . . . . . . . . . .third choice

  2.  evaluates at x = -1; remainder is -11 . . . . first choice

Step-by-step explanation:

Dividing f(x) by (x -a) gives ...

  f(x)/(x -a) = g(x) +r/(x -a) . . . . some quotient and a remainder r

If we multiply this expression by (x -a), we see ...

  f(x) = (x -a)g(x) +r

so

  f(a) = (a -a)g(a) +r . . . . . evaluate the above equation at x=a

  f(a) = 0 +r

  f(a) = r . . . . . . . . . a statement of the remainder theorem

If r=0, then x-a is a factor of f(x) = (x-a)g(x).

___

1. We have "a" = 3, and f(3) = 0. Therefore (x-3) is a factor.

__

2. We have "a" = -1, and f(-1) = -11. Therefore the remainder from division by (x+1) is -11.

6 0
3 years ago
Which value is an input of the function?
MissTica

Answer:

x

Step-by-step explanation:

the value of x is the input and value of y is the output

8 0
3 years ago
Joe ordered 300 notebooks for the school store. He received
balu736 [363]
30 notebooks, 300 notebooks divided by 10 = 30
5 0
3 years ago
Read 2 more answers
Mandy used the input and output in this table to write ratios she concluded that because they are not all equivalent this is not
Alexandra [31]

Answer:

They Would be if they Have a pattern from left to right such as +2 or -5.

Step-by-step explanation:

If an example is counting up from 15 to 31 and 0 to 8 the pattern is Adding Two. So if the numbers decrease or increase in a certain way, then you can find out what it is and thn bam, your answer to the question.

5 0
3 years ago
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Someone please help me with this question
alexira [117]
Is there another part of this?
5 0
3 years ago
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