Question

Use the trigonometric function values of the quadrantal angles to evaluate. \(2 \cot 270^\circ + 7 \sec 180^\circ\)

          Use the trigonometric function values of the quadrantal angles to evaluate.
\(2 \cot 270^\circ + 7 \sec 180^\circ\)
        
Use the trigonometric function values of the quadrantal angles to evaluate.
2 cot 270^∘ + 7 sec 180^∘

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Introductory and Intermediate Algebra for College Students 4th
Introductory and Intermediate Algebra for College Students 4th
Robert Blitzer 4th Edition
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Use the trigonometric function values of the quadrantal angles to evaluate: 2cot(270°) + 7sec(180°)
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Transcript

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00:01 In this problem, we have been asked to use trigonometric function values of quadrantal angles to evaluate the given expression.
00:09 Now, the given expression is tan of 0 degrees minus 6 times sine of 90 degrees.
00:20 So, first of all, recall that the tangent of the quadrantal angle 0 degrees is 0.
00:27 That is, tan of 0 degrees is 0.
00:31 This we subtract 6 times sine 90 degrees, and the sign of the quadrantal angle 90 degrees is known to be 1...
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