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yarga [219]
3 years ago
12

Can anyone help me on this fast plz.

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
5 0
False
False
True
True
False
damaskus [11]3 years ago
3 0

Answer:

2. false

3.true

4.true

5.false

Step-by-step explanation:

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Use a double angle or half angle identity to find the exact value of each expression
inna [77]

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4 0
2 years ago
If Acot theta + Bcot theta =4 and
geniusboy [140]

Answer is: B

Step-by-step explanation: correct answer is B

b  

2

−a  

2

 

Given, acotθ+bcscθ=p

           bcotθ+acscθ=q

⇒p  

2

−q  

2

=(p−q)(p+q)

                   =[acotθ+bcscθ−bcotθ−acscθ][acotθ+bcscθ+bcotθ+acscθ]

                   =[cotθ(a−b)−cscθ(a−b)][cotθ(a+b)+cscθ(a+b)]

                   =(a−b)(cotθ−cscθ)(a+b)(cotθ+cscθ)

                   =(a  

2

−b  

2

)(cot  

2

θ−csc  

2

θ)

                   =(−1)(a  

2

−b  

2

)[∵csc  

2

θ−cot  

2

θ=1]

                   =(b  

2

−a  

2

)

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2 years ago
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