Math, asked by resham1990, 9 months ago

prove that :
tan( 180/20) -tan (3×180/20)-tan(7×180/20)+tan (9×180/20)=4

Answers

Answered by hidendncr

0

Answer:

pi,20)tan(3pi,20)tan(5pi,20)tan (7pi,20)tan(9pi,20) = ... tan(π20)tan(3π20)tan( 5π20)tan(7π20)tan(9π20) = 10.8 K+.

Answered by ppsssahith

0

Answer:

Step-by-step explanation:

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