Solve: 2sec(x) + 5 = 9 Which equation is equivalent to the given equation? cos(x) =1/2 cos(x) = -2 sin(x) = 1/2 sin(x) = -2

asked Jan 8, 2023 132k views

8 votes

Solve: 2sec(x) + 5 = 9

Which equation is equivalent to the given
equation?
cos(x) =1/2
cos(x) = -2
sin(x) = 1/2
sin(x) = -2

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0 votes

Answer: cos(x)= 1/2 is correct

Step-by-step explanation: just got the answer right

Amaatouq answered Jan 8, 2023

8.4k points

2 votes

Answer:

$\cos(x)=(1)/(2)$

Explanation:

$2\sec(x)+5=9\\\\2\sec(x)=4\\\\\sec(x)=2\\\\(1)/(\sec(x))=(1)/(2)\\ \\\cos(x)=(1)/(2)$

Thus, the first option is correct

Meinersbur answered Jan 12, 2023

8.9k points

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