Mathematics: Idon t have the calculator : ( add some details !

Idon t have the calculator : ( add some details !

Ответ:

oakleylynn

14.01.2022

$\sin2x-\sin x=2\sin x\cos x-\sin x=\sin x(2\cos x-1)=0$

$\implies\sin x=0\text{ or }2\cos x-1=0$

From the first equation, we get two possible solutions at x=0

and $x=\pi\approx3.14$ .

From the second equation, we get

$2\cos x-1=0\implies\cos x=\dfrac12$

which has exact solutions at $x=\dfrac\pi3$ and $x=\dfrac{5\pi}3$ . Since $\pi\approx3.14$ , we can approximate these solutions by $x=\dfrac\pi3\approx1.05$ and $x=\dfrac{5\pi}3\approx5.24$ .

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Ответ:

angelafisher886

20.07.2021

Mathematics

Okay and.. I need more information in order to answer like
What numbers are in the problem

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