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Sloan [31]
3 years ago
13

If sin(2x)=cos (x+30°), what is the value of x?

Mathematics
1 answer:
Murljashka [212]3 years ago
3 0

Answer:

x=20

Step-by-step explanation:

Please mark as brainliest

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6 kilometers = 6000 meters


1 kilometer = 1000 meters
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Jan is saving for a skateboard she has saved 30 dollars already which is 20percent of the total price. How much does it cost?
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(x^2 + x -1) x (x^2+3x-3)

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8 0
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Land needs to order supplies for the upcoming month. Her
Dahasolnce [82]

60 of each item

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Work out the angle of elevation from the
insens350 [35]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \:Angle \:\: of \:\: elevation= 30°

____________________________________

\large \tt Solution  \: :

Let the angle of elevation be " x "

\qquad \tt \rightarrow \:  \cos(x)  =  \dfrac{9 \sqrt{3} }{18}

\qquad \tt \rightarrow \:  \cos(x)  =  \dfrac{ \sqrt{3} }{2}

\qquad \tt \rightarrow \: x =  \cos {}^{ - 1}  \bigg( \cfrac{ \sqrt{3} }{2} \bigg )

\qquad \tt \rightarrow \: x = 30 \degree \:  \:  or \:  \:  \cfrac{ \pi}{6}   \:  \: rad

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

8 0
2 years ago
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