Помогите ,пожалуйста, номера 5,6,8

5 30sin56*cos56/sin112=15sin112/sin112=15 6 {4-x>0⇒x<4 {4-x=64⇒x=4-64⇒x=-60 Ответ х=-60 8 [latex]8 ^{2log(8)7} =8 ^{log(8)49} =49[/latex]

5. 30sin(56)*cos(56)/sin(112) = 15*sin(2*56)/sin(112) = 15 6.log4(4-x)=3, 4-x>0, x<4 4^3=4-x 64=4-x x=4-64 x=-60 8.64^(log8(7)) = 8^(2log8(7))=8^(log8(49)) = 49