Question
Asked Oct 18, 2019
279 views

If csc(x)=3,for 90∘  <x<180∘,then:

sin (x/2)=

cos (x/2)=

tan (x/2)=

 

Use a half angle formula to fill in the blanks in the identity below:

(cos(4x))2=_________ +___________cos(_________x)

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Expert Answer

Step 1

Given function is

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csc(x) 3 90<x<180*

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Step 2

To find out

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sin (x/2) cos (x/2) tan (x/2)

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Step 3
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csc(x) 3 sin(x) x= sin x= 19.47°

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Tagged in

Math

Trigonometry

Trigonometric Ratios