Math, asked by Gjsjehrhegve, 3 months ago

tan23°-tan51°+tan39°-tan67°=

Answers

Answered by soumi603

2

Answer:

tan23°-tan67°-tan51°+tan39°

=tan23°-tan(90°-23°)-tan51°+tan(90°-51°)

=tan23°-cot23°-tan51°+cot51°

=tan23°-1/tan23°-tan51°+1/tan51°

=1-1-1+1

=2-2

=0

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