A) sinA=a/c=1/3 a=1 c=3 b=√(3*3-1)= 2√2 cosA=2√2/3
B)sinA= √2/3=a/c a= √2 c=3 b= √(9-2)= √7 cosA= √7/ 3
A) sinA=a/c=1/3 a=1 c=3 b=√(3*3-1)= 2√2 cosA=2√2/3
B)sinA= √2/3=a/c a= √2 c=3 b= √(9-2)= √7 cosA= √7/ 3