1)
AC=√(AB²-CB²)=√(289-64)=√225=15;
sinA=CB/AB=8/17;
sinB=AC/AB=15/17
cosA=AC/AB=15/17
cosB=BC/AB=8/17
tgA=BC/AC=8/15
tgB=15/8=1,875
2)
AB=√(AC²+BC²)=29
sinA=CB/AB=21/29
sinB=AC/AB=20/29
cosA=sinB=20\29
cosB=sinA=21/29
tgA=BC/AC=21/20
tgB=AC/BC=20/21
3) AB=√(AC²+BC²)=√5
sinA=BC/AB=1/√5=√5/5
sinB=AC/AB=2/√5=2√5/5
cosA=sinB=2√5/5
cosB=sinA=√5/5
tgA=BC/AC=1/2
tgB=AC/BC=2
4)
BC=√(AB²-AC²)=√49=7
sinA=BC/AB=7/25
sinB=AC/AB=24/25
cosA=sinB=24/25
cosB=sinA=7/25
tgA=BC/AC=7/24
tgB=AC/BC=24/7
1)
AC=√(AB²-CB²)=√(289-64)=√225=15;
sinA=CB/AB=8/17;
sinB=AC/AB=15/17
cosA=AC/AB=15/17
cosB=BC/AB=8/17
tgA=BC/AC=8/15
tgB=15/8=1,875
2)
AB=√(AC²+BC²)=29
sinA=CB/AB=21/29
sinB=AC/AB=20/29
cosA=sinB=20\29
cosB=sinA=21/29
tgA=BC/AC=21/20
tgB=AC/BC=20/21
3) AB=√(AC²+BC²)=√5
sinA=BC/AB=1/√5=√5/5
sinB=AC/AB=2/√5=2√5/5
cosA=sinB=2√5/5
cosB=sinA=√5/5
tgA=BC/AC=1/2
tgB=AC/BC=2
4)
BC=√(AB²-AC²)=√49=7
sinA=BC/AB=7/25
sinB=AC/AB=24/25
cosA=sinB=24/25
cosB=sinA=7/25
tgA=BC/AC=7/24
tgB=AC/BC=24/7