Question

1, tan^2(5) + tan^2(10) + ... + tan^2(85) = ?
2, tan^2(10) + tan^2(50) + tan^2(70) = ?
3, tan 1 + tan 5 + tan 9 + ... + tan 177 = ?
4, cot 70 + cot 130 + cot 10 = ?
Plz help me as fast as you can :((

Answer 1

Answer:

sorry.... I'm not sure

Answer 2

the a and

$\sec( \sin( \sin( \cot( \alpha {5 {)x { \times { {y212 | | \sqrt[ \sqrt{ < > \geqslant \leqslant \leqslant .0xx {y + \times \cot( \alpha \gamma log_{ \binom{ log(\pi\% log_{ \alpha \cos( \cot( \sec( \csc(?) ) ) ) }(?) ) }{?} }(?) ) }^{2} \times \frac{?}{?} } ]{?} | | }^{2} \times \frac{?}{?} \times \frac{?}{?} }^{2} }^{2} }^{?} \times \frac{?}{?} }^{?} ) ) ) )$