Question

5sin п/4 +3 tg п/4-5 cos п/4 -10 ctg п/6

Answer 1

$5, sinfrac{pi}{4}+3, tgfrac{pi}{4}-5, cosfrac{pi}{4}-10, ctgfrac{pi}{6}=\\=5cdot frac{sqrt2}{2}+3cdot 1-5cdot frac{sqrt2}{2}-10cdot sqrt3=3-10sqrt3=sqrt3cdot (sqrt3-10)$