3 years ago

Solve for x . Your answer must be simplified. 10x<−3

Mathematics

1 answer:

zhenek [66]3 years ago

3 0

This the answer i gotx<-3/10

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Soloha48 [4]

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Whitepunk [10]

Answer:

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2 years ago

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pantera1 [17]

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Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

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3 years ago