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Nostrana [21]
3 years ago
15

Given sec theta=3 . use trigonometric identities to find the exact value of : csc (90degrees-theta)

Mathematics
1 answer:
sergey [27]3 years ago
4 0
Sec θ = 3
1/cos θ = 3
1/sin(90 - θ) = 3
csc(90 - θ) = 3
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Let the smaller number be x.

Given, the larger number is 7 times the smaller number.

So, the larger number = 7x.

Given, 3 times the larger number is 7 more than 4 times the smaller number.

So we can write the equation as,

3(7x) = 4(x)+7

3(7x) = 4x+7

21x = 4x+7

Now we have to move 4x to the left side by subtracting 4x from both sides.

21x-4x = 4x-4x+7

21x-4x = 7

17x = 7

To get x, we will divide both sides by 17. We will get,

\frac{17x}{17} = \frac{7}{17}

x = \frac{7}{17}

So the smaller number = \frac{7}{17}

The larger number = 7(\frac{7}{17} ) = \frac{49}{17}

So we have got the required numbers.

Smaller number = \frac{7}{17} and larger number = \frac{49}{17}.

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Answer: f(x)= x+40000

Step-by-step explanation:

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f(x)= x+40000   which is the required answer.

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