Ambiguous case 1 triangle how to tell

So helpful

#1.] How do I create a program that asks for "A", then prints "4/5(1-A/5)/(4/5*3/5) A= <Input> and B= <Answer>"? ~ #2.] How do I ask 'Is 4/5(1-3/5)/4/5*3/5+5/5 equal to SEC30(SIN60 + TAN30)" ?