sinA=√(1-cos²A)=√(1-7²/25²)=24/25
Sin^2A= 1- COS^A
sin^2A = 1 -(7|25)^2
sin^2A=576/625
sinA=24/25=0,96
sinA=√(1-cos²A)=√(1-7²/25²)=24/25
Sin^2A= 1- COS^A
sin^2A = 1 -(7|25)^2
sin^2A=576/625
sinA=24/25=0,96