144
Объяснение:
sin²<B+cos²<B=1
sin<B=√(1-(7/25)²)=√(625/625-49/625)=
=√((625-49)/625)=√(576/625)=24/25
sin<B=AC/AB
24/25=AC/150
AC=150*24/25=144
144
Объяснение:
sin²<B+cos²<B=1
sin<B=√(1-(7/25)²)=√(625/625-49/625)=
=√((625-49)/625)=√(576/625)=24/25
sin<B=AC/AB
24/25=AC/150
AC=150*24/25=144