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Asked Oct 7, 2019
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TRIGONOMETRIC IDENTITIES AND EQUATIONS
Mаx
Half-angle identities: Problem type 1
Español
5п
Use a half-angle formula to find the exact value of sin
8
5п
sin
?
Aa
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TRIGONOMETRIC IDENTITIES AND EQUATIONS Mаx Half-angle identities: Problem type 1 Español 5п Use a half-angle formula to find the exact value of sin 8 5п sin ? Aa

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Expert Answer

Step 1

We know that,

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1-cos(2x) sin(x) 2

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Step 2

Given,

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8 5T 1-cos 2X 8 (using the above formula) 2 '5л 5Tt -cos 2 1-cos(T+ 2 1+cos 4 (cos(JT0) cos(e) 2 |1+ = CC

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Step 3

Further calcu...

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1+ 2 Z+1 2 2 V2+1 2/2 2+v2 4 2+2 2

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