Question

tanA+tanB/CotA+CotB= tanA tanB

Answer 1

Step-by-step explanation:

TAN A + TAN B/COTA+COTB

=TAN A+TAN B

_____________

1 1

____ + ____

TAN A TAN B

=TAN A +TAN B ×TAN A. TAN B/TAN A+ TAN B

=TAN A. TAN B

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