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tester [92]
3 years ago
14

Cos θ - sin θ = √2 sin θ, then prove that cos θ + sin θ = √2 cos θ.

Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

i hope it helps u ......

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Explain how you would use properties do you write an expression equivalent to 7y+4b-3y.
erica [24]
1st you combine like terms so subtract 7y and 3y and you get 4y. So this is the final answer: 4y+4b.
5 0
3 years ago
Please help me fill in the blanks again
Artemon [7]

Answer:

Comp

84

69

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3 0
3 years ago
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Use the remainder theorem to divide 5x^2+9x-2 by x+3. What is the remainder
marishachu [46]

Answer:

16

Step-by-step explanation:

Given

f(x)=5x^2+9x-2

Remainder theorem states that when f(x) is divided by x-a then the remainder can be calculated by calculating f(a).

Now Using the remainder theorem to divide 5x^2+9x-2 by x+3 to find the remainder:

f(x)=5x^2+9x-2

f(-3) = 5(-3)^2 +9(-3) -2

       =5(9) - 27 -2

       = 45-29

        = 16 !

7 0
3 years ago
Read 2 more answers
Find the length indicated. find CE
torisob [31]
Okay, to find length CE, your going to know the value of <em>x</em>. Length BC + CE = BD + DE.
3x+47+x+26=27+x+10
Simplify the equation to get
4x+73=37+x
you can choose one of four ways to continue, but I will choose to subtract x
3x+73=37
Subtract 73 from both sides of the equal sign
3x=-36
divide by 3 on both sides of the equal sign to get the value of x
x=-12

Now, plug in -12 for x in length CE to get -12+26=14
6 0
4 years ago
1/3 + a + 5/4. what is A
USPshnik [31]

Answer:

a = -1.58

Step-by-step explanation:

1/3 +a+5/4 =0

1/3+5/4= -a

4+15/12 = -a

19/12 = -a

1.58= -a

1.58/-1 = -a/-1

-1.58 = a

6 0
4 years ago
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