Mathematics, 18.09.2019 21:00 herchellann302

If tan a=1/7 and tan b=1/3, prove that
cos 2a =sin 4b

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If tan a=1/7 and tan b=1/3, prove that
cos 2a =sin 4b...

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More questions: Mathematics Another questions

If tan a=1/7 and tan b=1/3, prove that cos 2a =sin 4b

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Another question on Mathematics

If tan a=1/7 and tan b=1/3, prove that
cos 2a =sin 4b