Collinsm178 Collinsm178
  • 12-06-2019
  • Mathematics
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Does anyone know this answer to this questions

Does anyone know this answer to this questions class=

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kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 12-06-2019

ANSWER

-4.0

EXPLANATION

The given trigonometric equation is

[tex] \tan \: 45 \degree - 10 \: \cos \: 60 \degree[/tex]

From special angles or using the unit circle.

[tex]\tan \: 45 \degree = 1[/tex]

[tex] \cos \: 60 \degree = \frac{1}{2} [/tex]

We make the substitution to get:

[tex]1 - 10 ( \frac{1}{2} ))[/tex]

This simplifies to:

[tex]1 - 5 = - 4[/tex]

Hence the correct answer is -4.0

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