trig Identities 6

Mathematics
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Find the exact value for .tan pie/8

Dec 17th, 2014

tan π/8 
= sin π/4 / (1 + cos π/4) 
= (1/√2) / (1 + 1/√2) 
= 1 / (√2 + 1) 
= (√2 -1 ) / (√2 + 1)(√2 - 1) 
= √2 -1.

Dec 17th, 2014

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Dec 17th, 2014
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Dec 17th, 2014
Dec 3rd, 2016
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