Question

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Answer 1

A) tg 45 + tg 3.45 + tg 5.45 + tg 7.45 = tg45(1+3+5+7)=tg45.16= tg 720 = 0

B)tg x + tg 2x + tg 4x + tg 6x= tg π/6+ tg2.π/6+tg 4.π/6+tg 6.π/6= tgπ/6(1+2+4+6)= tg π/6.13= 13 $\pi$ /6

Answer 2

A) tg 45 = 1
 tg x  + tg 3x  + tg 5x + tg 7x =
0,02 + 0,05+ 0,09+ 0,12 = 0,28

tg pi/6 = 3,14 /6 = 9,13
tg x + tg 2x + tg 4x + tg 6x =

0,16 + 0,33 + 0,74 + 1,42 = 2,65