Math, asked by bobby2099, 1 year ago

Prove That cost/8-tanπ/8=2

Answers

Answered by CᴀɴᴅʏCʀᴜsʜ
1

Answer:

cosπ/8/sinπ/8-sinπ/8/cosπ/8=

cos^2π/8-sin^2π/8/sinπ/8.cosπ/8=

2coπ/4/sinπ/4=

2cotπ/4=

2.1=2

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