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-BARSIC- [3]
3 years ago
8

Given cscx/cotx=sqrt2, find a numerical value of one trigonometric function of x.

Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0

   \frac{csc (x)}{cot (x)} = \sqrt{2}

⇒ \frac{csc (x)}{1} * \frac{1}{cot (x)} = \sqrt{2}

⇒ \frac{1}{sin (x)} * \frac{sin(x)}{cos (x)} = \sqrt{2}

⇒\frac{1}{cos (x)} = \sqrt{2} ; sin(x) ≠ 0, cos(x) ≠ 0

⇒ \frac{cos (x)}{1} = \frac{1}{\sqrt{2}}; sin(x) ≠ 0, cos(x) ≠ 0

⇒ cos (x) = \frac{\sqrt{2}}{2}

Use the Unit Circle to determine when cos (x) = \frac{\sqrt{2}}{2}

Answer: 45° and 315°  (\frac{\pi}{4} and \frac{7\pi }{4} )


alex41 [277]3 years ago
5 0

Answer: secx=\sqrt{2}

Step-by-step explanation:

A on edge

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