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If tanA=1/7 and tanB=1/3 prove that cos2A=sin4B

If tanA=1/7 and tanB=1/3 prove that cos2A=sin4B
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If tanA=1/7 and tanB=1/3 prove that cos2A=sin4B

User Funkatron
by
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1 Answer

5 votes

Answer:

8. 96. 24

sin4B3. = ___. = ___ = cos2A

10 100. 25

9

User Ashraf Alshahawy
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