Tg97°×ctg197°×cos297°

Question

Tg97°×ctg197°×cos297°

Answer 1

Tg97° = -0.410321
Ctg197° = -0.760929
Cos297° = -0.11921 ⇒
-0.410321*(-0.760929)* (-0.11921) = -0.03722