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27-07-2020
Mathematics

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Prove that tan (pi/4 + A) tan (3pi/4 +A) = -1

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rafiamughal343 rafiamughal343

27-07-2020

Answer:

Step-by-step explanation:

tan(pi\4+A)tan(3pi\4+A) =-1

using the tangent sum of angle formula

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